{"as_of":"2026-08-22T08:35:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:35676acf0295c0c12e6d3124d9619ee4c809391217db84c73b59fd233a135806","coverage":[{"denominator":29,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":29,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-05T10:35:24.405030Z","state":"measured"},{"denominator":29,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":29,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-22T06:32:14.747728+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/2509.03978/citation-record","integrity":"/paper/2509.03978/integrity","json":"/paper/2509.03978/citation-record.json","paper":"/paper/2509.03978"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:22.514886Z","title":"Nonlinear Optical Properties of Crystals,","venue":null,"work_id":null,"year":1991},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:22.514886Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:c998fd8bba7f58c1638dbaac22f7f695cb5e9e690938ea38b3b957857b38f407","observation_id":"3e9a47ac-3beb-4c4b-8379-2b7b79c59735","resolution":{"observed_at":"2026-08-05T10:35:22.514886Z","resolver_source":null,"status":"malformed_identifier"},"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":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:22.586038Z","title":"Ultrabright source of polarization-entangled photons,","venue":null,"work_id":null,"year":1999},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:22.586038Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:ad59725ac10920a07def644746da22e8b3c5c95434facc0e969d97ca3fb93c6b","observation_id":"dc3d53da-f7a2-41c8-b5f0-8476b400d5f7","resolution":{"observed_at":"2026-08-05T10:35:22.586038Z","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":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:22.658749Z","title":"Entangled photon- pair generation in nonlinear thin -films,","venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:22.658749Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:1693bcc5c4b0d91fec600fe647ce5ad7d0d1d60ca6b1c7cec1e7bdf5d1b6dc61","observation_id":"058c610c-510c-4cd9-91d6-19dec0bd7e0e","resolution":{"observed_at":"2026-08-05T10:35:22.658749Z","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":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:22.725668Z","title":"Microscale Generation of Entangled Photons without Momentum Conservation,","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:22.725668Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:73604fff5ff7b76c00de92b08de1980f7518d5091f8f7c533a46a27be4a4d8ed","observation_id":"5d8c9f7d-157f-426b-9069-74c286094835","resolution":{"observed_at":"2026-08-05T10:35:22.725668Z","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":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:22.784465Z","title":"Flat-optics generation of broadband photon pairs with tunable polarization entanglement,","venue":null,"work_id":null,"year":2022},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:22.784465Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:ee285f076f3b11a5bba0fc4562150291f12234e781ee8aa45f3ab49d88cb475d","observation_id":"29c94a5a-00e3-458a-a83e-5c729177c4b5","resolution":{"observed_at":"2026-08-05T10:35:22.784465Z","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":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:22.852560Z","title":"Entangled photons from subwavelength nonlinear films,","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:22.852560Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:102621e99501772797c6fc5ee829cd2aef05d0748c2c83147f0f2b38671758c8","observation_id":"692ffa2e-6c40-4672-8822-fd899de9b0b6","resolution":{"observed_at":"2026-08-05T10:35:22.852560Z","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":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:22.918057Z","title":"Ultrathin quantum light source with van der Waals NbOCl2 crystal,","venue":null,"work_id":null,"year":2023},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:22.918057Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:d741550535c6a5740f7f4a52683379bcc5e94301915b033b23fe0679c8064771","observation_id":"f049c460-e5a7-4139-bbe1-2e10710f0d2f","resolution":{"observed_at":"2026-08-05T10:35:22.918057Z","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":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:22.968923Z","title":"Van der Waals engineering for quantum -entangled photon generation,","venue":null,"work_id":null,"year":2025},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:22.968923Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:a467a937526df29a0c489b91eaba3504e5514bd7f2e125b26db7c74d75c3f214","observation_id":"c4519cad-7b23-4166-b12c-30aa4836e8c1","resolution":{"observed_at":"2026-08-05T10:35:22.968923Z","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":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:23.031922Z","title":"Quasi-phase-matched up- and down-conversion in periodically poled layered semiconductors,","venue":null,"work_id":null,"year":2025},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.031922Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:62397da45665db77c97b31dc84d3222011a52ed23b50cd9cbc11f0cfee5ca319","observation_id":"452a5a58-80ed-4964-9e41-a2670e4b4597","resolution":{"observed_at":"2026-08-05T10:35:23.031922Z","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":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:23.141450Z","title":"A tunable transition metal dichalcogenide entangled photon -pair source,","venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.141450Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:f5339c079a5261df572024578cfd7989bdba2d1eaca445014341b4e6244b9c21","observation_id":"535b1985-86da-4364-9a95-b45e35690634","resolution":{"observed_at":"2026-08-05T10:35:23.141450Z","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":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:23.217530Z","title":"Absolute scale of second -order nonlinear-optical coefficients,","venue":null,"work_id":null,"year":1997},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.217530Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:813d5fc77f03f4128c8d8940b9dd7343de87dc3c8391ff0eb327a93ce5af43aa","observation_id":"afeb69da-6627-4667-883b-74ee9c66b6da","resolution":{"observed_at":"2026-08-05T10:35:23.217530Z","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":"10.1063/1.355272","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"Determination of quadratic nonlinear optical coefficient of Al x Ga1− x As system by the method of reflected second harmonics,","venue":"Journal of Applied Physics","work_id":"8a975a6c-f94c-4e5c-b4e9-bc460dbdb70e","year":1993},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.267731Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:3f09614887718056cb2ca9186db4e9cbbf5cd47ced5bc6a2a556b322c17f54ee","observation_id":"2bd4300c-f6cc-44d9-8d1b-9d64668fce34","resolution":{"observed_at":"2026-08-05T10:35:26.731820Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:23.353087Z","title":"Temporally Distilled High-Dimensional Biphotonic States from Thin Sources,","venue":null,"work_id":null,"year":2024},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.353087Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:f14fba90ea31c01206838ddd168ff9db51beb966021e0bae62e72d0f9b2108e8","observation_id":"a3e2b5b9-2a21-45b1-b209-267973e89c3f","resolution":{"observed_at":"2026-08-05T10:35:23.353087Z","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":"10.1021/acs.nanolett.3c00026","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"Background-Free Near-Infrared Biphoton Emission from Single GaAs Nanowires,","venue":"Nano Letters","work_id":"49b014f6-99b0-43f3-8421-6675427ce9c3","year":2023},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.417639Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:91b84d7a3ac0ee1e69064e6d38d1ab63fb0aebae32a84a294878aead930980e2","observation_id":"1d71e51f-c512-427c-bd12-c62669edb212","resolution":{"observed_at":"2026-08-05T10:35:26.718401Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:23.471987Z","title":"Resonant metasurfaces for generating complex quantum states,","venue":null,"work_id":null,"year":2022},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.471987Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:94db37db088676896f5dbfe5a30e4c3e5473f9640e97bbf417c5f6f423fea062","observation_id":"9ba5174a-d582-4e2f-a2c1-c66bd67f5f78","resolution":{"observed_at":"2026-08-05T10:35:23.471987Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":{"arxiv_id":"2501.11850","last_updated":"2025-01-21T03:07:58Z","snapshot_observed_at":"2026-08-16T15:14:51.153598Z","submitted_at":"2025-01-21T03:07:58Z","title":"Two-photon Interference of Biphotons Emitted by Overlapping Resonances in Metasurfaces","version":1},"cited_work":{"arxiv_id":"2501.11850","doi":"10.48550/arxiv.2501.11850","metadata_source":"pith","pith_arxiv_id":"2501.11850","snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"Two-photon Interference of Biphotons Emitted by Overlapping Resonances in Metasurfaces","venue":"quant-ph","work_id":"f7ba26ce-8cfe-42fd-a766-802841003732","year":2025},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.551549Z"},"links":{"cited_paper":"/paper/2501.11850","citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:f7728a18ac745de4ab08cad6f2c9e20a75167ec42c5214283e8affd02df877b2","observation_id":"17367935-7f78-46cf-955e-d3582b51936b","resolution":{"observed_at":"2026-08-05T10:35:26.470555Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":{"arxiv_id":"2409.10845","last_updated":"2024-09-17T02:22:47Z","snapshot_observed_at":"2026-08-16T13:17:58.576644Z","submitted_at":"2024-09-17T02:22:47Z","title":"Generation of tunable quantum entanglement via nonlinearity symmetry breaking in semiconductor metasurfaces","version":1},"cited_work":{"arxiv_id":"2409.10845","doi":"10.48550/arxiv.2409.10845","metadata_source":"pith","pith_arxiv_id":"2409.10845","snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"Generation of tunable quantum entanglement via nonlinearity symmetry breaking in semiconductor metasurfaces","venue":"physics.optics","work_id":"224ce38a-295c-409d-a6b7-9930cea74bda","year":2024},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":17,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.620415Z"},"links":{"cited_paper":"/paper/2409.10845","citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:88719c168c5454de0de4ca022a0ef735186081bae6de0e33ed0cdd71e693343c","observation_id":"65592b90-b618-469d-ae6f-2a52b8c0d1f6","resolution":{"observed_at":"2026-08-05T10:35:26.237768Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1116/6.0004450","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"Optimizing GaAs/AlGaAs growth on GaAs (111)B for enhanced nonlinear efficiency in quantum optical metasurfaces,","venue":"Journal of Vacuum Science & Technology A Vacuum Surfaces and Films","work_id":"9b882993-2b15-4e6d-9efd-ed765faacd89","year":2025},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":18,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.664018Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:4d3333b5dc8c88bdf399be0407b69941ddb85e552cd5e8a0221859b6cc237c32","observation_id":"3401368a-a86a-4153-9a95-a57f65ef0cd5","resolution":{"observed_at":"2026-08-05T10:35:26.007855Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+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":"2026-08-05T10:35:26.798425Z","title":"Etch Rates and Selectivities of Citric Acid/Hydrogen Peroxide on GaAs, Al0.3Ga0.7As, In0.2Ga0.8As, In0.53Ga0.47As, In0.52Al0.48As, and InP","venue":null,"work_id":"1305cec4-15c2-4cf3-b87b-bffe4718748a","year":null},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":19,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.727841Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:1abc952f133dc1896c54fd64c422146585a6035b841a4038a557b3aba7307811","observation_id":"91e94dcb-bb19-4131-9ca3-73c0d4ecee5b","resolution":{"observed_at":"2026-08-05T10:35:26.802883Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1103/physrevlett.88.183601","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"Entangled Two -Photon Wave Packet in a Dispersive Medium,","venue":"Physical Review Letters","work_id":"13c5b585-ece5-4c30-898f-0d18915db784","year":2002},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.787063Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:e5819092bb8bf8e5afd9901da80cec12ae2b496dd2ab7059c98441daa9c4e2c5","observation_id":"5f111268-5401-4bf7-8a8b-67e12b5e1889","resolution":{"observed_at":"2026-08-05T10:35:25.792146Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1364/oe.555205","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"A simple model for entangled photon generation in resonant structures,","venue":"Optics Express","work_id":"d2788d81-13de-48bc-86cd-2a8c97367c32","year":2025},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":21,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.848090Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:1738b6a48e40f9d19489217eaae032139c189fbc7e9279533fb5f1ef4d0a76df","observation_id":"70f0f012-1bae-42c5-8517-538b24bc3bf3","resolution":{"observed_at":"2026-08-05T10:35:25.628494Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:23.933538Z","title":null,"venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":22,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.933538Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:0d8d0bab96249ea851bd987fafd867f54ad7c1bdb684d9fe1030629cb865074f","observation_id":"c7cddd36-3184-4210-bfe4-4f03cbb0a834","resolution":{"observed_at":"2026-08-05T10:35:23.933538Z","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":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-05T10:35:23.992743Z","title":"Photon Pairs from Resonant Metasurfaces,","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":23,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:23.992743Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:c8362d11f70bb77e20ab817d57ebefa527718b15d50e3fef0d883d9dd8fbdc3a","observation_id":"bd2b10f5-d274-4b4d-9354-ead57f1bcc48","resolution":{"observed_at":"2026-08-05T10:35:23.992743Z","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":"10.1134/1.558243","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"Polarization of light: Fourth -order effects and polarization -squeezed states,","venue":"Journal of Experimental and Theoretical Physics","work_id":"37f160a3-8f75-47ce-a2f4-9134cb2a8ea7","year":1997},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:24.052411Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:80c87e56fa7274b51acecd726b119394a3bd24cb9d7688b87567ed84b042a87a","observation_id":"b0091fe8-5e74-4cb0-b5c2-6cbed39f9c1b","resolution":{"observed_at":"2026-08-05T10:35:25.308936Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1016/0375-9601(92)90837-c","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"Multiphoton interference and polarization effects,","venue":"Physics Letters A","work_id":"215fa019-0696-4b17-8c65-a62a32e1e8ad","year":1992},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:24.114296Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:17c7159336e5db5b38ee338010a4cacbd5021ec0843593405477c1d32f1c9ec2","observation_id":"d27090e2-ba0e-459d-aad4-983ce97a69dd","resolution":{"observed_at":"2026-08-05T10:35:25.078362Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1103/physreva.71.033818","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"Quantum polarization properties of two -mode energy eigenstates,","venue":"Physical Review A","work_id":"dd89e864-c793-48c0-b3c8-369538153728","year":2005},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:24.219443Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:f3a8e27651ce39204e623094a1c4d01aba9826636de440315c86a8f5b1c87985","observation_id":"8b02c53a-dd6b-4b19-a434-ab0ac163740e","resolution":{"observed_at":"2026-08-05T10:35:24.925983Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1364/oe.448084","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"Enhancement of spin noise spectroscopy of rubidium atomic ensemble by using the polarization squeezed light,","venue":"Optics Express","work_id":"0ed6a5b5-4b0a-4545-8087-d26a916d9b48","year":1925},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":27,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:24.284315Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:c105829a7ed44833cdc2962ab15b07436ff2f26ee9846698da2b53dbffb49a56","observation_id":"50def6a7-e4cb-4c18-8e8d-7a33efd26994","resolution":{"observed_at":"2026-08-05T10:35:24.798121Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1103/physrevlett.102.183602","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"Generation and Direct Detection of Broadband Mesoscopic Polarization -Squeezed Vacuum,","venue":"Physical Review Letters","work_id":"8184439d-a30c-434c-a82a-61bb3d1ac484","year":2009},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:24.359028Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:b897e42a3f2cf412426374cf87741a1413f017bd49d5e7fe52e33e4b1b73535e","observation_id":"024c3f0f-00d5-43da-b91e-5f57908f8dd9","resolution":{"observed_at":"2026-08-05T10:35:24.666179Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":"10.1103/physrevlett.80.3487","metadata_source":"openalex","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T05:30:23.456663Z","title":"Quantum Noise of an Atomic Spin Polarization Measurement,","venue":"Physical Review Letters","work_id":"bcf2495f-a0a3-4582-bfe3-bfb57a8fd8d0","year":1998},"citing_paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons","version":1},"reference_index":29,"source":"pdf_text","source_observed_at":"2026-08-05T10:35:24.405030Z"},"links":{"citing_paper":"/paper/2509.03978"},"observation_digest":"sha256:96db0a0c77163ffcffafaba215b4c6b6fde7bacee98900986060f0393e718bb9","observation_id":"32637882-689e-42e0-b871-848469516752","resolution":{"observed_at":"2026-08-05T10:35:24.542478Z","resolver_source":"doi","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"2509.03978","last_updated":"2025-09-04T08:06:41Z","latest_version":1,"primary_category":"physics.optics","snapshot_observed_at":"2026-08-09T20:53:42.030410Z","submitted_at":"2025-09-04T08:06:41Z","title":"Thin-film Al0.30Ga0.70As (111) as a flat source of high-purity orthogonally polarized entangled photons"},"reference_resolution":{"displayed":29,"state_counts":{"malformed_identifier":1,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":14,"verified_exact":13,"verified_fuzzy":1},"total_outbound_references":29},"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":"2026-08-22T06:32:14.747728+00:00","source":"crossref"},{"observed_at":"2026-08-22T06:32:06.552537+00:00","source":"retraction_watch"}],"thesis":"As of 22 August 2026, this Paper Citation Record lists 29 of 29 outbound references and 0 inbound Pith citation observations for arXiv:2509.03978."}