{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:QJ2YCWONSR36GZ4HBBQNVS5NPN","short_pith_number":"pith:QJ2YCWON","canonical_record":{"source":{"id":"1708.01674","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-08-04T22:19:49Z","cross_cats_sorted":[],"title_canon_sha256":"31cd06d02bae377f7585301dd719f4d861645754a9362537993cf56e39bd55af","abstract_canon_sha256":"1fc0d028ca07258e55b86b637c586558b0cbdd824d830e76d52fccdaa4cd93de"},"schema_version":"1.0"},"canonical_sha256":"82758159cd9477e367870860dacbad7b63676cd928da01750a47b6d71cf4c27c","source":{"kind":"arxiv","id":"1708.01674","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.01674","created_at":"2026-05-18T00:24:52Z"},{"alias_kind":"arxiv_version","alias_value":"1708.01674v1","created_at":"2026-05-18T00:24:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.01674","created_at":"2026-05-18T00:24:52Z"},{"alias_kind":"pith_short_12","alias_value":"QJ2YCWONSR36","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QJ2YCWONSR36GZ4H","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QJ2YCWON","created_at":"2026-05-18T12:31:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:QJ2YCWONSR36GZ4HBBQNVS5NPN","target":"record","payload":{"canonical_record":{"source":{"id":"1708.01674","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-08-04T22:19:49Z","cross_cats_sorted":[],"title_canon_sha256":"31cd06d02bae377f7585301dd719f4d861645754a9362537993cf56e39bd55af","abstract_canon_sha256":"1fc0d028ca07258e55b86b637c586558b0cbdd824d830e76d52fccdaa4cd93de"},"schema_version":"1.0"},"canonical_sha256":"82758159cd9477e367870860dacbad7b63676cd928da01750a47b6d71cf4c27c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:52.036624Z","signature_b64":"YCQFtonvDHwb3yqOlGNzp2x2wYdWXBOXk+VFK/fZi877XdmdTRMhP8WJgW2U0/2ELie6UI3Vz6gGhE6JUTn3Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"82758159cd9477e367870860dacbad7b63676cd928da01750a47b6d71cf4c27c","last_reissued_at":"2026-05-18T00:24:52.036067Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:52.036067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.01674","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:24:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RftMeXy9gggTSrDsEOA8pvwTNgSlhl1WHV+729FisrxuX0z8LFSs3FD3RrFKo4O+kNMLq3IlwcdfnhMoWC7xBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T08:30:05.311379Z"},"content_sha256":"aa356d3c525df7fa1732ff73220c27a169659f1c367f927b5169214f9466d04a","schema_version":"1.0","event_id":"sha256:aa356d3c525df7fa1732ff73220c27a169659f1c367f927b5169214f9466d04a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:QJ2YCWONSR36GZ4HBBQNVS5NPN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stroboscopic qubit measurement with squeezed illumination","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Aashish A. Clerk, Andrew Eddins, David M. Toyli, Hugo Ribeiro, Irfan Siddiqi, Leigh S. Martin, Luke C. G. Govia, Shay Hacohen-Gourgy, Sydney Schreppler","submitted_at":"2017-08-04T22:19:49Z","abstract_excerpt":"Microwave squeezing represents the ultimate sensitivity frontier for superconducting qubit measurement. However, observation of enhancement has remained elusive, in part because integration with conventional dispersive readout pollutes the signal channel with antisqueezed vacuum. Here we induce a stroboscopic light-matter coupling with superior squeezing compatibility, and observe an increase in the room-temperature signal-to-noise ratio of 24%. Squeezing the orthogonal phase controls measurement backaction, slowing dephasing by a factor of 1.8. This protocol enables the practical use of micro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.01674","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:24:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AygYT2p8+qlvOhf2He02BMxKCtSEzswwJiXDk7VhSX98uBnmGoEzTGh3xLOPb+EJJgxH1ofqR1QEWC5cBbdmBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T08:30:05.311733Z"},"content_sha256":"5c79996d6aea5ad6baac80cd18bf0274850f4b50196979b04086ae50f20e64d4","schema_version":"1.0","event_id":"sha256:5c79996d6aea5ad6baac80cd18bf0274850f4b50196979b04086ae50f20e64d4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QJ2YCWONSR36GZ4HBBQNVS5NPN/bundle.json","state_url":"https://pith.science/pith/QJ2YCWONSR36GZ4HBBQNVS5NPN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QJ2YCWONSR36GZ4HBBQNVS5NPN/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-02T08:30:05Z","links":{"resolver":"https://pith.science/pith/QJ2YCWONSR36GZ4HBBQNVS5NPN","bundle":"https://pith.science/pith/QJ2YCWONSR36GZ4HBBQNVS5NPN/bundle.json","state":"https://pith.science/pith/QJ2YCWONSR36GZ4HBBQNVS5NPN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QJ2YCWONSR36GZ4HBBQNVS5NPN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:QJ2YCWONSR36GZ4HBBQNVS5NPN","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"1fc0d028ca07258e55b86b637c586558b0cbdd824d830e76d52fccdaa4cd93de","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-08-04T22:19:49Z","title_canon_sha256":"31cd06d02bae377f7585301dd719f4d861645754a9362537993cf56e39bd55af"},"schema_version":"1.0","source":{"id":"1708.01674","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.01674","created_at":"2026-05-18T00:24:52Z"},{"alias_kind":"arxiv_version","alias_value":"1708.01674v1","created_at":"2026-05-18T00:24:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.01674","created_at":"2026-05-18T00:24:52Z"},{"alias_kind":"pith_short_12","alias_value":"QJ2YCWONSR36","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QJ2YCWONSR36GZ4H","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QJ2YCWON","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:5c79996d6aea5ad6baac80cd18bf0274850f4b50196979b04086ae50f20e64d4","target":"graph","created_at":"2026-05-18T00:24:52Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Microwave squeezing represents the ultimate sensitivity frontier for superconducting qubit measurement. However, observation of enhancement has remained elusive, in part because integration with conventional dispersive readout pollutes the signal channel with antisqueezed vacuum. Here we induce a stroboscopic light-matter coupling with superior squeezing compatibility, and observe an increase in the room-temperature signal-to-noise ratio of 24%. Squeezing the orthogonal phase controls measurement backaction, slowing dephasing by a factor of 1.8. This protocol enables the practical use of micro","authors_text":"Aashish A. Clerk, Andrew Eddins, David M. Toyli, Hugo Ribeiro, Irfan Siddiqi, Leigh S. Martin, Luke C. G. Govia, Shay Hacohen-Gourgy, Sydney Schreppler","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-08-04T22:19:49Z","title":"Stroboscopic qubit measurement with squeezed illumination"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.01674","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:aa356d3c525df7fa1732ff73220c27a169659f1c367f927b5169214f9466d04a","target":"record","created_at":"2026-05-18T00:24:52Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"1fc0d028ca07258e55b86b637c586558b0cbdd824d830e76d52fccdaa4cd93de","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-08-04T22:19:49Z","title_canon_sha256":"31cd06d02bae377f7585301dd719f4d861645754a9362537993cf56e39bd55af"},"schema_version":"1.0","source":{"id":"1708.01674","kind":"arxiv","version":1}},"canonical_sha256":"82758159cd9477e367870860dacbad7b63676cd928da01750a47b6d71cf4c27c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"82758159cd9477e367870860dacbad7b63676cd928da01750a47b6d71cf4c27c","first_computed_at":"2026-05-18T00:24:52.036067Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:52.036067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YCQFtonvDHwb3yqOlGNzp2x2wYdWXBOXk+VFK/fZi877XdmdTRMhP8WJgW2U0/2ELie6UI3Vz6gGhE6JUTn3Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:52.036624Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.01674","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa356d3c525df7fa1732ff73220c27a169659f1c367f927b5169214f9466d04a","sha256:5c79996d6aea5ad6baac80cd18bf0274850f4b50196979b04086ae50f20e64d4"],"state_sha256":"eb2ca86765318d385f9b40804431acac8448f36db1aa93bceb41ae69604efe04"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9UYlcn9Dq16Gtch8S3ekZKv2g7HwRJmuQxQNIDNrHoUdcI9UOWNr3qL7kV3JwNC6IdUzauJAxeTAh0EVQ2pCBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T08:30:05.313848Z","bundle_sha256":"fbf8f1fdb2c6902b1cada501249a801144ecae55fe2ad1889be9536cdc08e57b"}}