{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:ZQXWUS42KLGC6EGQYXL2J2R6L3","short_pith_number":"pith:ZQXWUS42","schema_version":"1.0","canonical_sha256":"cc2f6a4b9a52cc2f10d0c5d7a4ea3e5ed4d6bd5097022fa4bfe9385596866e75","source":{"kind":"arxiv","id":"2505.13992","version":1},"attestation_state":"computed","paper":{"title":"A heralded quantum amplifier of multi-photon states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Farzad Ghafari, Geoff J. Pryde, Luis Villegas-Aguilar, Lynden K. Shalm, Matthew S. Winnel, Sergei Slussarenko, Timothy C. Ralph, Varun B. Verma","submitted_at":"2025-05-20T06:39:38Z","abstract_excerpt":"Large-scale quantum networking systems will inevitably require methods to overcome photon loss. While the no-cloning theorem forbids perfect and deterministic amplification of unknown quantum states, probabilistic heralded amplification schemes offer a viable path forward. Yet, for over a decade, successful multi-photon state amplification has remained out of reach, despite the fundamental importance of such states in achieving quantum advantage in optical applications. Here, we experimentally demonstrate a high-fidelity and post-selection-free amplifier for multi-photon states. We achieve her"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2505.13992","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-05-20T06:39:38Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"935cc932b495b9c8d4210b67e9c0c3e218f60646c13bc815f22f5dc415687600","abstract_canon_sha256":"3de267cd98aaeb427e2dee6a9254559c2b245f9469dc931f0853d027034098a8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:05:54.385165Z","signature_b64":"t+dXQ+JvP/Yx0EnxAz32U/EydA4rW2UhaE1b4BIvtpLS7LrAJpvRm9Hfi7QQj+Ykl1Fc2s8bH1FMIe4Qw9iqAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cc2f6a4b9a52cc2f10d0c5d7a4ea3e5ed4d6bd5097022fa4bfe9385596866e75","last_reissued_at":"2026-07-05T11:05:54.384691Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:05:54.384691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A heralded quantum amplifier of multi-photon states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Farzad Ghafari, Geoff J. Pryde, Luis Villegas-Aguilar, Lynden K. Shalm, Matthew S. Winnel, Sergei Slussarenko, Timothy C. Ralph, Varun B. Verma","submitted_at":"2025-05-20T06:39:38Z","abstract_excerpt":"Large-scale quantum networking systems will inevitably require methods to overcome photon loss. While the no-cloning theorem forbids perfect and deterministic amplification of unknown quantum states, probabilistic heralded amplification schemes offer a viable path forward. Yet, for over a decade, successful multi-photon state amplification has remained out of reach, despite the fundamental importance of such states in achieving quantum advantage in optical applications. Here, we experimentally demonstrate a high-fidelity and post-selection-free amplifier for multi-photon states. We achieve her"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.13992","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2505.13992/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2505.13992","created_at":"2026-07-05T11:05:54.384748+00:00"},{"alias_kind":"arxiv_version","alias_value":"2505.13992v1","created_at":"2026-07-05T11:05:54.384748+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.13992","created_at":"2026-07-05T11:05:54.384748+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZQXWUS42KLGC","created_at":"2026-07-05T11:05:54.384748+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZQXWUS42KLGC6EGQ","created_at":"2026-07-05T11:05:54.384748+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZQXWUS42","created_at":"2026-07-05T11:05:54.384748+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ZQXWUS42KLGC6EGQYXL2J2R6L3","json":"https://pith.science/pith/ZQXWUS42KLGC6EGQYXL2J2R6L3.json","graph_json":"https://pith.science/api/pith-number/ZQXWUS42KLGC6EGQYXL2J2R6L3/graph.json","events_json":"https://pith.science/api/pith-number/ZQXWUS42KLGC6EGQYXL2J2R6L3/events.json","paper":"https://pith.science/paper/ZQXWUS42"},"agent_actions":{"view_html":"https://pith.science/pith/ZQXWUS42KLGC6EGQYXL2J2R6L3","download_json":"https://pith.science/pith/ZQXWUS42KLGC6EGQYXL2J2R6L3.json","view_paper":"https://pith.science/paper/ZQXWUS42","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2505.13992&json=true","fetch_graph":"https://pith.science/api/pith-number/ZQXWUS42KLGC6EGQYXL2J2R6L3/graph.json","fetch_events":"https://pith.science/api/pith-number/ZQXWUS42KLGC6EGQYXL2J2R6L3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZQXWUS42KLGC6EGQYXL2J2R6L3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZQXWUS42KLGC6EGQYXL2J2R6L3/action/storage_attestation","attest_author":"https://pith.science/pith/ZQXWUS42KLGC6EGQYXL2J2R6L3/action/author_attestation","sign_citation":"https://pith.science/pith/ZQXWUS42KLGC6EGQYXL2J2R6L3/action/citation_signature","submit_replication":"https://pith.science/pith/ZQXWUS42KLGC6EGQYXL2J2R6L3/action/replication_record"}},"created_at":"2026-07-05T11:05:54.384748+00:00","updated_at":"2026-07-05T11:05:54.384748+00:00"}