{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:4IYWOVX3SBTS7SWO5UN6H6EUFN","short_pith_number":"pith:4IYWOVX3","schema_version":"1.0","canonical_sha256":"e2316756fb90672fcaceed1be3f8942b60e9dc64fe114fd1a8509c55d35ce0ef","source":{"kind":"arxiv","id":"1512.07148","version":1},"attestation_state":"computed","paper":{"title":"Spontaneous symmetry breaking and phase coherence of a photon Bose-Einstein condensate coupled to a reservoir","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"Christian Wahl, David Dung, Frank Vewinger, Jan Klaers, Julian Schmitt, Martin Weitz, Tobias Damm","submitted_at":"2015-12-22T16:30:27Z","abstract_excerpt":"We examine the phase evolution of a Bose-Einstein condensate of photons generated in a dye microcavity by temporal interference with a phase reference. The photo-excitable dye molecules constitute a reservoir of variable size for the condensate particles, allowing for grand canonical statistics with photon bunching, as in a lamp-type source. We directly observe phase jumps of the condensate associated with the large statistical number fluctuations and find a separation of correlation timescales. For large systems, our data reveals phase coherence and a spontaneously broken symmetry, despite th"},"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":"1512.07148","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2015-12-22T16:30:27Z","cross_cats_sorted":[],"title_canon_sha256":"9689e7daa9df82c6a4fa2de6f097fd9bc3881fac58114ba4e2b9fd0d95e6de05","abstract_canon_sha256":"9c3b5ba326b24447a34b1ec6f4649ea4f5484e7cb0a8d1ac5505435240530bac"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:50.789876Z","signature_b64":"PKTumqYOWlSVC8Gaw0+I3baDgu9FZ2B9SvDbIi+JRz7MS2MWfbt7EPgq1H2BTvF/dSMalDjrGuMy/J+YsRdPBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e2316756fb90672fcaceed1be3f8942b60e9dc64fe114fd1a8509c55d35ce0ef","last_reissued_at":"2026-05-18T01:21:50.789209Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:50.789209Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Spontaneous symmetry breaking and phase coherence of a photon Bose-Einstein condensate coupled to a reservoir","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"Christian Wahl, David Dung, Frank Vewinger, Jan Klaers, Julian Schmitt, Martin Weitz, Tobias Damm","submitted_at":"2015-12-22T16:30:27Z","abstract_excerpt":"We examine the phase evolution of a Bose-Einstein condensate of photons generated in a dye microcavity by temporal interference with a phase reference. The photo-excitable dye molecules constitute a reservoir of variable size for the condensate particles, allowing for grand canonical statistics with photon bunching, as in a lamp-type source. We directly observe phase jumps of the condensate associated with the large statistical number fluctuations and find a separation of correlation timescales. For large systems, our data reveals phase coherence and a spontaneously broken symmetry, despite th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.07148","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1512.07148","created_at":"2026-05-18T01:21:50.789311+00:00"},{"alias_kind":"arxiv_version","alias_value":"1512.07148v1","created_at":"2026-05-18T01:21:50.789311+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.07148","created_at":"2026-05-18T01:21:50.789311+00:00"},{"alias_kind":"pith_short_12","alias_value":"4IYWOVX3SBTS","created_at":"2026-05-18T12:29:05.191682+00:00"},{"alias_kind":"pith_short_16","alias_value":"4IYWOVX3SBTS7SWO","created_at":"2026-05-18T12:29:05.191682+00:00"},{"alias_kind":"pith_short_8","alias_value":"4IYWOVX3","created_at":"2026-05-18T12:29:05.191682+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/4IYWOVX3SBTS7SWO5UN6H6EUFN","json":"https://pith.science/pith/4IYWOVX3SBTS7SWO5UN6H6EUFN.json","graph_json":"https://pith.science/api/pith-number/4IYWOVX3SBTS7SWO5UN6H6EUFN/graph.json","events_json":"https://pith.science/api/pith-number/4IYWOVX3SBTS7SWO5UN6H6EUFN/events.json","paper":"https://pith.science/paper/4IYWOVX3"},"agent_actions":{"view_html":"https://pith.science/pith/4IYWOVX3SBTS7SWO5UN6H6EUFN","download_json":"https://pith.science/pith/4IYWOVX3SBTS7SWO5UN6H6EUFN.json","view_paper":"https://pith.science/paper/4IYWOVX3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1512.07148&json=true","fetch_graph":"https://pith.science/api/pith-number/4IYWOVX3SBTS7SWO5UN6H6EUFN/graph.json","fetch_events":"https://pith.science/api/pith-number/4IYWOVX3SBTS7SWO5UN6H6EUFN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4IYWOVX3SBTS7SWO5UN6H6EUFN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4IYWOVX3SBTS7SWO5UN6H6EUFN/action/storage_attestation","attest_author":"https://pith.science/pith/4IYWOVX3SBTS7SWO5UN6H6EUFN/action/author_attestation","sign_citation":"https://pith.science/pith/4IYWOVX3SBTS7SWO5UN6H6EUFN/action/citation_signature","submit_replication":"https://pith.science/pith/4IYWOVX3SBTS7SWO5UN6H6EUFN/action/replication_record"}},"created_at":"2026-05-18T01:21:50.789311+00:00","updated_at":"2026-05-18T01:21:50.789311+00:00"}