{"as_of":"2026-08-20T08:08:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:728b011e556d906bbe63d2934893bbb4c98e342426b9c08df412228437a3f624","coverage":[{"denominator":45,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":45,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-14T05:04:18.470442Z","state":"measured"},{"denominator":45,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":45,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-20T06:33:59.587034+00:00","state":"measured"},{"denominator":0,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":0,"source":"paper_references, paper_reference_links","source_observed_at":null,"state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"cited_works","source_observed_at":null,"state":"measured"}],"external_citation_measurements":[],"inbound":[],"links":{"evidence":"/evidence","html":"/paper/1909.02264/citation-record","integrity":"/paper/1909.02264/integrity","json":"/paper/1909.02264/citation-record.json","paper":"/paper/1909.02264"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:19.058691Z","title":null,"venue":null,"work_id":"e18fdcf2-79b4-43d4-ac35-1d7175331801","year":null},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.195664Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:4a78af657d55fa7043ec47029f87839676000b6fb647c62c20afcfd6428ff6c6","observation_id":"a63d46c9-e646-46ea-b843-12b2fae3f0e2","resolution":{"observed_at":"2026-08-14T05:04:19.062853Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:19.045035Z","title":null,"venue":null,"work_id":"a935b6f0-315f-4565-8af5-ef9a4105579a","year":null},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.199142Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:3d4f3eddc176489aff1cc8a8d72fe032ea400cf7aca5ce40f791af8fd23fc694","observation_id":"239d73ac-2b22-4e23-a82d-fdc6633d5f9a","resolution":{"observed_at":"2026-08-14T05:04:19.049172Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:19.030395Z","title":"ACKNOWLEDGMENTS We would like to acknowledge conversation with the Quantum Noise and Advanced Interferometer working groups of the LIGO Science Collaboration","venue":null,"work_id":"dc16e64a-47df-455a-bb46-13e0c72d1745","year":null},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.203193Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:ff73bc186b11a56d0e464fd82387b4dc15782b10c495ee23927cb6e81f9b04c1","observation_id":"01c1bdc3-95a9-4cb9-8f25-8a5ffa24f169","resolution":{"observed_at":"2026-08-14T05:04:19.035565Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.978555Z","title":"Gw170814: a three-detector observation of gravitational waves from a binary black hole coales- cence","venue":null,"work_id":"1a5955f4-5574-4f94-a86c-008edfdf89df","year":2017},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.219140Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:1bf48c9efa684cd4df3c41d0f8198cb349a6bcf8b010f0c1cd2f0f3a73e3ab4d","observation_id":"032b1046-d4df-4bda-be41-f06457979b81","resolution":{"observed_at":"2026-08-14T05:04:18.983232Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:19.018540Z","title":"Observation of gravitational waves from a binary black hole merger","venue":null,"work_id":"1049649a-0f1b-4195-b338-c255839c2e7d","year":2016},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.206947Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:28dfaaae6cf2dbaa83836df6a2f38e2da192281a29c168f300031856d693c208","observation_id":"12a255b3-7a5c-4f03-8692-b73a0545dd5c","resolution":{"observed_at":"2026-08-14T05:04:19.022626Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:19.005173Z","title":"Gw151226: Observation of gravitational waves from a 22-solar-mass binary black hole coalescence","venue":null,"work_id":"e8175b7b-aaeb-4681-ada2-480f37657c59","year":2016},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.210695Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:aeda5e57cefd72ceda75c2b918c3580d1456b6e2c07a55a48ee8335f6112edc8","observation_id":"8c7bccbb-35b2-42eb-87fd-83d84019e36f","resolution":{"observed_at":"2026-08-14T05:04:19.009497Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.991971Z","title":"Gw170104: observation of a 50-solar- mass binary black hole coalescence at redshift 0.2","venue":null,"work_id":"00545e56-3ff0-4eee-a741-411f0d10be5f","year":2017},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.214863Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:19840205509fc655a7987410e84bf6b24c0b69af1b0f158efae174dd4cbb4ffa","observation_id":"5d0e8d0d-a2f6-478e-a162-7df181bfe9dc","resolution":{"observed_at":"2026-08-14T05:04:18.996409Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.943739Z","title":null,"venue":null,"work_id":"57159945-37f1-4327-970e-233f8c92015f","year":1981},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.235491Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:95683949ac7092894f9d8e3957e9f53bdea61b65d35d379b63fdcf70f3af8365","observation_id":"be16ea82-4687-4fd8-bee7-730bb53d7f32","resolution":{"observed_at":"2026-08-14T05:04:18.947105Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.966481Z","title":"Gw170817: observation of gravitational waves from a binary neutron star inspiral","venue":null,"work_id":"95a7002f-412b-4c25-9059-11b2fb8ab94c","year":2017},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.222916Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:be2e5547ab900b064ee21776579341de1d755043619171e651ba2cf0261818c8","observation_id":"188b784f-30fa-431f-96d1-253e700d3c90","resolution":{"observed_at":"2026-08-14T05:04:18.970372Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.953888Z","title":"Gw170608: Observation of a 19 solar- mass binary black hole coalescence","venue":null,"work_id":"540948fd-3b39-4727-b71e-bccfb76115f2","year":2017},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.226934Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:34bbfd1dfbdf44cc9da0db597b9fce5577b6ba00aa797560ba8335d099f04735","observation_id":"4894f6cd-839d-4b5a-a50d-c2f4863144a5","resolution":{"observed_at":"2026-08-14T05:04:18.957750Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"1811.12907","last_updated":"2019-10-04T08:10:25Z","snapshot_observed_at":"2026-07-06T02:11:23.670680Z","submitted_at":"2018-11-30T17:34:09Z","title":"GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs","version":3},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"1811.12907","snapshot_observed_at":"2026-08-14T05:04:18.231068Z","title":"Gwtc-1: a gravitational-wave transient catalog of compact binary mergers observed by ligo and virgo dur- ing the first and second observing runs","venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.231068Z"},"links":{"cited_paper":"/paper/1811.12907","citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:95f6ec713be0f50086f02d65ac74d606887885b13de187347cb4f8ebc1b494cf","observation_id":"dacce537-ffe4-4a42-9fd9-1c491c08522f","resolution":{"observed_at":"2026-08-14T05:04:18.231068Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.896251Z","title":"Enhanced sensitivity of the ligo gravitational wave detector by us- ing squeezed states of light","venue":null,"work_id":"007a876a-25e6-4d6e-8dc8-f18f5b215e99","year":2013},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.250301Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:e9020491203da094cd4b5c737b3a3867de408d320ba50f7bd3e61c7ae9e212b9","observation_id":"af95c6c4-0102-45cd-bbb7-3bd218c1e1e3","resolution":{"observed_at":"2026-08-14T05:04:18.899957Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.932246Z","title":null,"venue":null,"work_id":"0b38d8ed-311a-42dd-9da2-c3e92654c82e","year":2001},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.239104Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:5445f6160eb6aec65fda29e44ddd1b4125695ce8fe21819b2f6f59df7acade79","observation_id":"dbbf9464-1ce0-493d-afc8-97c9b6928a6f","resolution":{"observed_at":"2026-08-14T05:04:18.936312Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.920485Z","title":"The geo 600 squeezed light source","venue":null,"work_id":"16d91b76-aaa3-4a87-91b0-eba04f88bc07","year":2010},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.242985Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:7147f98f258d25f44548642ea3e63886cf342d7fd251e2d89c145afd19f1393a","observation_id":"00d21b85-b89e-4713-ad73-e2aea5dd8f91","resolution":{"observed_at":"2026-08-14T05:04:18.925103Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.907180Z","title":"Abadie, B","venue":null,"work_id":"5b75bc4a-7bfa-4c70-8326-547f87261ad4","year":2011},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.246441Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:73656aa73452f46f31c105a0bec428aed7c9002554ac42f232fc729518c63d4d","observation_id":"7c3b0cc1-7d4d-445e-832c-e7628ad8215b","resolution":{"observed_at":"2026-08-14T05:04:18.911304Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.838259Z","title":"Measurement of quantum back action in the audio band at room temperature","venue":null,"work_id":"51c13c85-e6b5-4be3-9672-be37ec23aa55","year":2019},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.267038Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:5c5900fdc147de84daedb48b6fd2c46283d4e577b01065b181a656808190296a","observation_id":"2d76b168-e93b-4133-bd32-7349c546b84a","resolution":{"observed_at":"2026-08-14T05:04:18.842928Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.883413Z","title":"Quantum tomography enhanced through parametric amplification","venue":null,"work_id":"18622cab-a124-4d8a-b551-5eb07789d2d6","year":2018},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":17,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.254731Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:181e9c1adeb37c285982e6725614954b7e227737420a6eecdf4ed78f6fefbfcd","observation_id":"a7230c2d-e7a6-443d-a655-6a21c37d22b5","resolution":{"observed_at":"2026-08-14T05:04:18.888641Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.862364Z","title":"Overcoming inefficient detection in sub-shot- noise absorption measurement and imaging","venue":null,"work_id":"f8b12593-aa9f-4b34-a79a-17e21ca17340","year":2019},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":18,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.258748Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:272eba893311ab98dadfcd60d7ecc8b863c4f585fba69e9bfb9fa04a2f0decfa","observation_id":"ac6924ed-d3cf-4c2f-8874-137a8b9c76f3","resolution":{"observed_at":"2026-08-14T05:04:18.866255Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.850775Z","title":"Mathematical framework for simulation of quantum fields in complex interferometers using the two-photon formal- ism","venue":null,"work_id":"024ea0c3-d884-41c9-9343-ba983f99d30d","year":2005},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":19,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.263153Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:37351567b24262d0d16c785b95d9fd37aaef8229775e8596193ccc16dcc1f2be","observation_id":"70525ac7-213d-409c-828e-cc78765868da","resolution":{"observed_at":"2026-08-14T05:04:18.854950Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.798717Z","title":"Caves and Bonny L","venue":null,"work_id":"54b45612-6100-48fb-8e44-ff08a5070d4c","year":1985},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.284909Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:0414ee7d04bef359ef5ee1a37ab997cdfaad94efc0f37c7a31520adbacdc55ea","observation_id":"f5574629-3b97-401a-808e-d44eacdf78d4","resolution":{"observed_at":"2026-08-14T05:04:18.803861Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2001.11173","last_updated":"2020-06-10T01:49:26Z","snapshot_observed_at":"2026-07-06T08:53:39.723525Z","submitted_at":"2020-01-30T04:45:38Z","title":"A Cryogenic Silicon Interferometer for Gravitational-wave Detection","version":2},"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":"2001.11173","snapshot_observed_at":"2026-08-14T05:04:18.272304Z","title":"A cryogenic silicon interferometer for gravitational-wave detection","venue":null,"work_id":null,"year":2001},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":21,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.272304Z"},"links":{"cited_paper":"/paper/2001.11173","citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:5a0d30effd8c7b067492eadcfcbfa7430bcd023bce970a76b64e8a80e26a19d0","observation_id":"32e01990-de4e-49a7-ae57-be27421314e4","resolution":{"observed_at":"2026-08-14T05:04:18.272304Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.826301Z","title":null,"venue":null,"work_id":"69e315ab-89b9-483b-aa2f-5e7ca7592179","year":2019},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":22,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.276393Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:c32b9ed8591c95228b9fc1df1f63cd9fa80c1db6d88d2ef4cdb56524761ff180","observation_id":"ae02dd1e-3026-42e1-8bf9-e5ee55090b8d","resolution":{"observed_at":"2026-08-14T05:04:18.830460Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:19.074042Z","title":"negative inertia","venue":null,"work_id":"b9af2bed-e608-48e6-be72-fcf0e0bb866e","year":null},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":23,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.190295Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:40b2bb5b9c42c8638bdf2a077a0caad7a99c679d67c11ac22722a60083c80493","observation_id":"c8332807-817d-4cbd-a657-05ac68e1d76c","resolution":{"observed_at":"2026-08-14T05:04:19.082323Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.811260Z","title":null,"venue":null,"work_id":"efbfb1ea-5d09-4e54-8db1-a984d5718124","year":1982},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.281009Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:aaac51646fddc0cf8064a05d1b0d5e0afa0959826ebb18237515be843814b436","observation_id":"c09435a5-2f1c-4cec-809c-c87136b80cc7","resolution":{"observed_at":"2026-08-14T05:04:18.814958Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.787169Z","title":"Schumaker and Carlton M","venue":null,"work_id":"52eb2171-307d-4daf-aab7-e9f5c7e4fb29","year":1985},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.288259Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:dccb362626e27cc68ca25cab972159aaa7caa379e9d1ba26255523936f0fa0b1","observation_id":"c1736409-46e0-44be-9f02-71f637ec9f87","resolution":{"observed_at":"2026-08-14T05:04:18.790567Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.777368Z","title":null,"venue":null,"work_id":"853e7007-9696-4c98-86fc-09fb89a7b50d","year":2012},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.291643Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:283a338d8bb0e1a891a66d4d6a394be4eb7b130a5331bc51286c42e830132015","observation_id":"12e3688b-83e0-42a9-a954-70537c495294","resolution":{"observed_at":"2026-08-14T05:04:18.780536Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.766067Z","title":"Quantum noise in second generation, signal-recycled laser interferometric gravitational-wave detectors","venue":null,"work_id":"3798602a-8378-4ff6-8651-3da99354f171","year":2001},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":27,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.294928Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:b6d6cdbe35ec87f77bf0f26ea35d8817da4e021ae17f62515ef5ab23b2fd310f","observation_id":"f512a1d0-f8e8-4d4c-aa22-bd199995087e","resolution":{"observed_at":"2026-08-14T05:04:18.769984Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.755060Z","title":"Isogai, J","venue":null,"work_id":"e777956f-bd33-4fb9-917b-24b49734cb20","year":2013},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.298595Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:6cde67695b19591ef5d3f283c126e1a4bef2b651aa1dd3eba6ce89ab1e110aab","observation_id":"6076460f-b385-4f5a-af7c-f44b0153f4e0","resolution":{"observed_at":"2026-08-14T05:04:18.758740Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.740703Z","title":"Applications of long storage time optical cavities","venue":null,"work_id":"c512bb6d-17eb-46f8-9276-f9fd3521e535","year":null},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":29,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.301747Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:b25d58d3cf09719658d94e9b0de416f30fce9ee3eba83a2b0aad9e1ab09fc3e9","observation_id":"89d879a2-8fad-4620-acf4-719854e74642","resolution":{"observed_at":"2026-08-14T05:04:18.747188Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.726899Z","title":"Calculation method for light scattering caused by multilayer coated mirrors in gravitational wave detectors","venue":null,"work_id":"241a939e-db0b-4016-b3e4-81eda7f901a9","year":2017},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":30,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.305095Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:7204f82dda6947e0338c313b9f241d9d13001902da5bd8907bc557ff599d812b","observation_id":"5a459867-4597-4757-9ae2-5b81ec90eff1","resolution":{"observed_at":"2026-08-14T05:04:18.731901Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.711939Z","title":"Laser power stabilization beyond the shot noise limit using squeezed light","venue":null,"work_id":"294c7213-8854-4696-9609-a38efba0f453","year":2018},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":31,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.308227Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:0679a357db8da0557153b9348257f72cc3e84e8f5a9488cca16a4f41320cd037","observation_id":"48263a93-2964-439f-ada6-93f694924af6","resolution":{"observed_at":"2026-08-14T05:04:18.716760Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.698202Z","title":"Laser power stabilization using optical ac coupling and its quantum and technical limits","venue":null,"work_id":"5e8c2f0b-1e93-4f81-b2c9-cf95d128a063","year":2009},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":32,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.311295Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:c28ac6e6baffc4e81e2a5b6797d9bb9f09bd2629c1c1ae93c5371a2ce632ca49","observation_id":"4527c692-72a6-4317-895b-7b23adea6351","resolution":{"observed_at":"2026-08-14T05:04:18.703740Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.686491Z","title":"Lock Acquisition and Sensitivity Analy- sis of Advanced LIGO Interferometers","venue":null,"work_id":"5ddb3bee-f0ee-405b-9be7-eaa04458a7d3","year":2015},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":33,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.315152Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:1f29d1a567e1c331cdaf5c59d0153d3ed1569b31324125d29cd6a1471d903a20","observation_id":"6ebd3382-ebef-49ae-87bd-39fe7d14d154","resolution":{"observed_at":"2026-08-14T05:04:18.690487Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.669564Z","title":"Gustafson, Rana X","venue":null,"work_id":"73717acf-85e9-4ec4-bc09-07c1e70602c1","year":2013},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":34,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.319316Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:3867be68149b1e47e4387b61efd325a87c8ecbeedcc3058790497aae27d64354","observation_id":"1f3b05da-a93e-467d-8e92-293780841a09","resolution":{"observed_at":"2026-08-14T05:04:18.675402Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.656662Z","title":"Steinlechner, I","venue":null,"work_id":"4aa8d8d0-b710-4f25-a6ee-07d8e061c16c","year":2018},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":35,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.323140Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:818c0d1f8485d161974b49565be28b855769b09849b52b081daf5783e4d8858a","observation_id":"75337061-6cd2-4063-8876-ecd9582e1fb0","resolution":{"observed_at":"2026-08-14T05:04:18.661308Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.644782Z","title":null,"venue":null,"work_id":"99137d4a-f926-4696-896a-4cb5b1e4a7ed","year":2009},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":36,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.436158Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:ea060c94a492cef1202f75a5d5e8eb166b9fabadf0a63e530515743d162be068","observation_id":"f5efc873-bc88-49c3-8566-0f6ca34a9aba","resolution":{"observed_at":"2026-08-14T05:04:18.648281Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.633053Z","title":"Global optimization of multilayer dielectric coatings for precision measurements","venue":null,"work_id":"39ca1889-71df-48f2-beee-e3cf1e25e306","year":null},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":37,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.440150Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:70db3bb4f085e29e25e05cc3d4837340a07bca3be0c2a9d39df695c9f008f097","observation_id":"f8b8d19e-ebe6-461b-b79a-4b51eed492a5","resolution":{"observed_at":"2026-08-14T05:04:18.637584Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.619873Z","title":"Silicon mir- ror suspensions for gravitational wave detectors.Classical and Quantum Gravity , 31(2):025017, Dec 2013","venue":null,"work_id":"4ed7fa2f-aeb5-4349-abde-3d7a71e96287","year":2013},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":38,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.444881Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:641a3a2166bbe82216448b19d0a428b684bb4dfe08c86430d2eb920dfea3cdbd","observation_id":"3a7529ef-6c2c-42c3-b777-96578ec2fde1","resolution":{"observed_at":"2026-08-14T05:04:18.624078Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.604541Z","title":"Callen and Theodore A","venue":null,"work_id":"4ddbe05b-d671-454e-8999-3497a19508fd","year":1951},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":39,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.448687Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:90376d38a89f30901aa77913d2568533cb497e06f30d8e1d6bb2aaba49d51663","observation_id":"fc015304-b8d0-4948-99a2-8b2fcc358c53","resolution":{"observed_at":"2026-08-14T05:04:18.608785Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.590857Z","title":"Development of mir- ror coatings for gravitational wave detectors","venue":null,"work_id":"fcbc5d27-0218-421f-a4b1-d80f121f00de","year":2016},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":40,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.452238Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:4a3d470c41b948b7f4bcf60128d34b8c0e3aabef1ab1d5c04f7555eafc20dfbb","observation_id":"ddc32730-3a54-429c-b696-53f64aceccf6","resolution":{"observed_at":"2026-08-14T05:04:18.595722Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.577057Z","title":"Engineering the optical spring via intra-cavity optical-parametric amplification","venue":null,"work_id":"3f53e8ec-0cc1-41a6-a03c-29166f5de404","year":2018},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":41,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.455836Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:0b7a0046326ed77304fe07ab47c3fc86015ae7a60d51c0fd3d57a65d55003204","observation_id":"0631fddf-019b-49d8-b442-baee0387d842","resolution":{"observed_at":"2026-08-14T05:04:18.581886Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.563320Z","title":"Overcoming the stan- dard quantum limit in gravitational wave detectors using spin systems with a negative effective mass","venue":null,"work_id":"ee08d62d-4dd1-4a93-b3de-f75810afa2cc","year":2018},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":42,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.459689Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:2853be9676aa0cedd5113614e3f8d898a6140fcaf6d4393da3e7e3645c176166","observation_id":"08876b7c-d13c-4601-9553-604f48ccf121","resolution":{"observed_at":"2026-08-14T05:04:18.567580Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.549261Z","title":null,"venue":null,"work_id":"f68b832c-a18b-48ce-a137-fc69129b6d33","year":2007},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":43,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.463233Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:e032ca4e73be23be12fcb769022b991bf580e23fc50cb6bd7dcb3305fff3a68e","observation_id":"d54f3c21-9e64-458a-9dc5-8fa77c075919","resolution":{"observed_at":"2026-08-14T05:04:18.553112Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.537456Z","title":"Evans, Lisa Barsotti, Jan Harms, Patrick Kwee, and H Miao","venue":null,"work_id":"2f67cba0-fb57-4ec6-ac0d-5b635915c8fc","year":2013},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":44,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.467127Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:a1cd953fed118bdab69749e5e25ee53c495a4ef7c057fa0662e14808c2509ef2","observation_id":"7c814b1a-3fba-4655-905e-c041cfce81dc","resolution":{"observed_at":"2026-08-14T05:04:18.541389Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-14T05:04:18.523067Z","title":"Practical speed meter designs for quantum nondemolition gravitational-wave interferometers","venue":null,"work_id":"bcca8e8c-2552-4648-a127-9b2ef79e2e4f","year":2002},"citing_paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers","version":2},"reference_index":45,"source":"pdf_text","source_observed_at":"2026-08-14T05:04:18.470442Z"},"links":{"citing_paper":"/paper/1909.02264"},"observation_digest":"sha256:65bcedb1e1b9fb17f2acfc725ad4a5bad540f016921d5e9a75aa9a2a6f5610ef","observation_id":"b4810c79-34d4-4fb7-a022-5101999b84bc","resolution":{"observed_at":"2026-08-14T05:04:18.529296Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"1909.02264","last_updated":"2020-06-04T21:22:30Z","latest_version":2,"primary_category":"quant-ph","snapshot_observed_at":"2026-08-14T04:52:54.835023Z","submitted_at":"2019-09-05T08:46:36Z","title":"A phase-sensitive optomechanical amplifier for quantum noise reduction in laser interferometers"},"reference_resolution":{"displayed":45,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":11,"verified_exact":0,"verified_fuzzy":34},"total_outbound_references":45},"refusal":"A citation records a reference. It does not transfer a finding from one paper to another.","schema":"pith.paper-citation-record.v1","standing_sources":[{"observed_at":"2026-08-20T06:33:59.587034+00:00","source":"crossref"},{"observed_at":"2026-08-20T06:33:54.927442+00:00","source":"retraction_watch"}],"thesis":"As of 20 August 2026, this Paper Citation Record lists 45 of 45 outbound references and 0 inbound Pith citation observations for arXiv:1909.02264."}