{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:D6N2SR33MGEUPHMCUYVLXFXJQX","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":"333892880b24a3f3559ae1e35423596d68af3ace8437f5c1a9ceaf1d6913bc33","cross_cats_sorted":["hep-th","physics.optics","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-08-23T10:14:56Z","title_canon_sha256":"d19a2b9e30327fcdca8d287e6b8725cda9b5de23644e02abf34e2fc5582c5bbe"},"schema_version":"1.0","source":{"id":"1208.4710","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.4710","created_at":"2026-05-18T01:54:59Z"},{"alias_kind":"arxiv_version","alias_value":"1208.4710v2","created_at":"2026-05-18T01:54:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.4710","created_at":"2026-05-18T01:54:59Z"},{"alias_kind":"pith_short_12","alias_value":"D6N2SR33MGEU","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"D6N2SR33MGEUPHMC","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"D6N2SR33","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:9562bc2a3c312a17a4a3297e467f7705fadf7f65b153070ce6627f420f41de2e","target":"graph","created_at":"2026-05-18T01:54:59Z","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":"We study information geometry of the Dicke model, in the thermodynamic limit. The scalar curvature $R$ of the Riemannian metric tensor induced on the parameter space of the model is calculated. We analyze this both with and without the rotating wave approximation, and show that the parameter manifold is smooth even at the phase transition, and that the scalar curvature is continuous across the phase boundary.","authors_text":"Anshuman Dey, Pratim Roy, Subhash Mahapatra, Tapobrata Sarkar","cross_cats":["hep-th","physics.optics","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-08-23T10:14:56Z","title":"Information Geometry and Quantum Phase Transitions in the Dicke Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.4710","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":"sha256:048daec29ff7f61e2fcd44e5442ac158c96a1b1209d0df3c8a7bc47bfc1f10aa","target":"record","created_at":"2026-05-18T01:54:59Z","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":"333892880b24a3f3559ae1e35423596d68af3ace8437f5c1a9ceaf1d6913bc33","cross_cats_sorted":["hep-th","physics.optics","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-08-23T10:14:56Z","title_canon_sha256":"d19a2b9e30327fcdca8d287e6b8725cda9b5de23644e02abf34e2fc5582c5bbe"},"schema_version":"1.0","source":{"id":"1208.4710","kind":"arxiv","version":2}},"canonical_sha256":"1f9ba9477b6189479d82a62abb96e985f0af6c19c7f31d80e9b23fb76bbe4238","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f9ba9477b6189479d82a62abb96e985f0af6c19c7f31d80e9b23fb76bbe4238","first_computed_at":"2026-05-18T01:54:59.154914Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:59.154914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8GV82OAWXQytU94UAqMOUeqwFkOWInwktOK/29Ztoit4MpJxh7dame5UOZMc9jcZzp+bNq+DrS2a0RBeYeCQBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:59.155618Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.4710","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:048daec29ff7f61e2fcd44e5442ac158c96a1b1209d0df3c8a7bc47bfc1f10aa","sha256:9562bc2a3c312a17a4a3297e467f7705fadf7f65b153070ce6627f420f41de2e"],"state_sha256":"c7c71e9d52b2255098b44e02efead7ba36d02e94da7660c8dd0a46b97a4c7ed4"}