{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:UUXRIOSJOGY5XJX3MKARMVSZHZ","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":"89bd388adb12b514e1d73a0cfcd7f70a60fedd1fa2bdd2b19e778753c8d717e4","cross_cats_sorted":["cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-01T16:26:24Z","title_canon_sha256":"c2d47334f21d7a378f2a364a6e5d3b12d1ad84b3785826da98082ce1970ed61a"},"schema_version":"1.0","source":{"id":"1612.00336","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.00336","created_at":"2026-05-18T00:47:37Z"},{"alias_kind":"arxiv_version","alias_value":"1612.00336v2","created_at":"2026-05-18T00:47:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.00336","created_at":"2026-05-18T00:47:37Z"},{"alias_kind":"pith_short_12","alias_value":"UUXRIOSJOGY5","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"UUXRIOSJOGY5XJX3","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"UUXRIOSJ","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:8afed3571f56a7880c59affd68d84a15c4bc8b1563df3a73121b01df7d8f9352","target":"graph","created_at":"2026-05-18T00:47:37Z","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":"In this paper we analyze properties of the phase transition that appears in a set of quantum optical models; Dicke, Tavis-Cummings, quantum Rabi, and finally the Jaynes-Cummings model. As the light-matter coupling is increased into the deep strong coupling regime, the ground state turns from vacuum to become a superradiant state characterized by both atomic and photonic excitations. It is pointed out that all four transitions are of the mean-field type, that quantum fluctuations are negligible, and hence these fluctuations cannot be responsible for the corresponding vacuum instability. In this","authors_text":"Elinor K. Irish, Jonas Larson","cross_cats":["cond-mat.quant-gas"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-01T16:26:24Z","title":"Some remarks on 'superradiant' phase transitions in light-matter systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.00336","kind":"arxiv","version":2},"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":"sha256:31b7fa4976ead8d258b641497e32e9ff505102337ce3798905c6d2168528e679","target":"record","created_at":"2026-05-18T00:47:37Z","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":"89bd388adb12b514e1d73a0cfcd7f70a60fedd1fa2bdd2b19e778753c8d717e4","cross_cats_sorted":["cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-01T16:26:24Z","title_canon_sha256":"c2d47334f21d7a378f2a364a6e5d3b12d1ad84b3785826da98082ce1970ed61a"},"schema_version":"1.0","source":{"id":"1612.00336","kind":"arxiv","version":2}},"canonical_sha256":"a52f143a4971b1dba6fb62811656593e47f1b5413e5b865904b665848c539247","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a52f143a4971b1dba6fb62811656593e47f1b5413e5b865904b665848c539247","first_computed_at":"2026-05-18T00:47:37.975838Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:47:37.975838Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QbFZlOTP3im25d25NL8D5i0lEDzXrwWAxVYSYuGCfrExBGIG/jPgNSYQA+EPO1XW0GdfqmMNiZdsuImNv9OaCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:47:37.976410Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.00336","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:31b7fa4976ead8d258b641497e32e9ff505102337ce3798905c6d2168528e679","sha256:8afed3571f56a7880c59affd68d84a15c4bc8b1563df3a73121b01df7d8f9352"],"state_sha256":"0266e51274415b74b8dc4623f27b0e7c8b1cc14857d7c781de27f6f9b899ecd9"}