{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:AXVWCFZYRZSD5WNHDT6XPOHO6V","short_pith_number":"pith:AXVWCFZY","canonical_record":{"source":{"id":"1310.1719","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-10-07T10:00:07Z","cross_cats_sorted":[],"title_canon_sha256":"a699388aa8911bfb5ec97712468e5905b935d805a58c421952708b776d4db378","abstract_canon_sha256":"951aab22aab79f533683c142dadc0793d9a1956843e17ed56eb08a247e9f380c"},"schema_version":"1.0"},"canonical_sha256":"05eb6117388e643ed9a71cfd77b8eef565301613c93cb343da0e5cd7e416c8a6","source":{"kind":"arxiv","id":"1310.1719","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.1719","created_at":"2026-05-18T03:07:22Z"},{"alias_kind":"arxiv_version","alias_value":"1310.1719v1","created_at":"2026-05-18T03:07:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.1719","created_at":"2026-05-18T03:07:22Z"},{"alias_kind":"pith_short_12","alias_value":"AXVWCFZYRZSD","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"AXVWCFZYRZSD5WNH","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"AXVWCFZY","created_at":"2026-05-18T12:27:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:AXVWCFZYRZSD5WNHDT6XPOHO6V","target":"record","payload":{"canonical_record":{"source":{"id":"1310.1719","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-10-07T10:00:07Z","cross_cats_sorted":[],"title_canon_sha256":"a699388aa8911bfb5ec97712468e5905b935d805a58c421952708b776d4db378","abstract_canon_sha256":"951aab22aab79f533683c142dadc0793d9a1956843e17ed56eb08a247e9f380c"},"schema_version":"1.0"},"canonical_sha256":"05eb6117388e643ed9a71cfd77b8eef565301613c93cb343da0e5cd7e416c8a6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:07:22.525234Z","signature_b64":"G+gaUYKzyp/YbUtrE0Y64x2Sjx3Gt05Uyi5j1iaOmV4UdC+eDwjiLra5FipNsJgk60sJgz4EViEEmQfRHFqZCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"05eb6117388e643ed9a71cfd77b8eef565301613c93cb343da0e5cd7e416c8a6","last_reissued_at":"2026-05-18T03:07:22.524673Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:07:22.524673Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.1719","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":"2026-05-18T03:07:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SuRsUsBbaOZ5tAxwXEjDc3XnVDKVN1t1cdSZorwVVDSWRQfG6HVPSuMZveBowajx0YLfkzMows0ytsg52SZxDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T06:48:25.894740Z"},"content_sha256":"a338f40262aa94908535dc51a28b84579a259f395bc968602fc8f76e36d8aa83","schema_version":"1.0","event_id":"sha256:a338f40262aa94908535dc51a28b84579a259f395bc968602fc8f76e36d8aa83"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:AXVWCFZYRZSD5WNHDT6XPOHO6V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamically generated darkness in the Dicke model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Dionys Baeriswyl, Michael Tomka, Vladimir Gritsev","submitted_at":"2013-10-07T10:00:07Z","abstract_excerpt":"We study the dynamics of a driven Dicke model, where the collective spin is rotated with a constant velocity around a fixed axis. The time evolution of the mean photon number and of the atomic inversion is calculated using, on the one hand, a numerical technique for the quantum dynamics of a small number of two-level atoms, on the other hand, time-dependent mean-field theory for the limit of a large number of atoms. We observe a reduction of the mean photon number as compared to its equilibrium value. This dynamically generated darkness is particularly pronounced slightly above the transition "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.1719","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":"2026-05-18T03:07:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+RADST2MXQq+yK02rzHdKAupoJTxBqxHpbG5jbV6S0hQs3z1J6l07FozTWZa9xDttC6hEuxma/JXatzJbGNyAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T06:48:25.895491Z"},"content_sha256":"d9e44643be396e7ad402ee51881df34c23841622411fd9f248bbf246404f3165","schema_version":"1.0","event_id":"sha256:d9e44643be396e7ad402ee51881df34c23841622411fd9f248bbf246404f3165"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AXVWCFZYRZSD5WNHDT6XPOHO6V/bundle.json","state_url":"https://pith.science/pith/AXVWCFZYRZSD5WNHDT6XPOHO6V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AXVWCFZYRZSD5WNHDT6XPOHO6V/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":"2026-06-12T06:48:25Z","links":{"resolver":"https://pith.science/pith/AXVWCFZYRZSD5WNHDT6XPOHO6V","bundle":"https://pith.science/pith/AXVWCFZYRZSD5WNHDT6XPOHO6V/bundle.json","state":"https://pith.science/pith/AXVWCFZYRZSD5WNHDT6XPOHO6V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AXVWCFZYRZSD5WNHDT6XPOHO6V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:AXVWCFZYRZSD5WNHDT6XPOHO6V","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":"951aab22aab79f533683c142dadc0793d9a1956843e17ed56eb08a247e9f380c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-10-07T10:00:07Z","title_canon_sha256":"a699388aa8911bfb5ec97712468e5905b935d805a58c421952708b776d4db378"},"schema_version":"1.0","source":{"id":"1310.1719","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.1719","created_at":"2026-05-18T03:07:22Z"},{"alias_kind":"arxiv_version","alias_value":"1310.1719v1","created_at":"2026-05-18T03:07:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.1719","created_at":"2026-05-18T03:07:22Z"},{"alias_kind":"pith_short_12","alias_value":"AXVWCFZYRZSD","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"AXVWCFZYRZSD5WNH","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"AXVWCFZY","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:d9e44643be396e7ad402ee51881df34c23841622411fd9f248bbf246404f3165","target":"graph","created_at":"2026-05-18T03:07:22Z","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 the dynamics of a driven Dicke model, where the collective spin is rotated with a constant velocity around a fixed axis. The time evolution of the mean photon number and of the atomic inversion is calculated using, on the one hand, a numerical technique for the quantum dynamics of a small number of two-level atoms, on the other hand, time-dependent mean-field theory for the limit of a large number of atoms. We observe a reduction of the mean photon number as compared to its equilibrium value. This dynamically generated darkness is particularly pronounced slightly above the transition ","authors_text":"Dionys Baeriswyl, Michael Tomka, Vladimir Gritsev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-10-07T10:00:07Z","title":"Dynamically generated darkness in the Dicke model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.1719","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:a338f40262aa94908535dc51a28b84579a259f395bc968602fc8f76e36d8aa83","target":"record","created_at":"2026-05-18T03:07:22Z","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":"951aab22aab79f533683c142dadc0793d9a1956843e17ed56eb08a247e9f380c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-10-07T10:00:07Z","title_canon_sha256":"a699388aa8911bfb5ec97712468e5905b935d805a58c421952708b776d4db378"},"schema_version":"1.0","source":{"id":"1310.1719","kind":"arxiv","version":1}},"canonical_sha256":"05eb6117388e643ed9a71cfd77b8eef565301613c93cb343da0e5cd7e416c8a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"05eb6117388e643ed9a71cfd77b8eef565301613c93cb343da0e5cd7e416c8a6","first_computed_at":"2026-05-18T03:07:22.524673Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:07:22.524673Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G+gaUYKzyp/YbUtrE0Y64x2Sjx3Gt05Uyi5j1iaOmV4UdC+eDwjiLra5FipNsJgk60sJgz4EViEEmQfRHFqZCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:07:22.525234Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.1719","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a338f40262aa94908535dc51a28b84579a259f395bc968602fc8f76e36d8aa83","sha256:d9e44643be396e7ad402ee51881df34c23841622411fd9f248bbf246404f3165"],"state_sha256":"843ba4a73ba6f6e3f4d360518028698e0d9cd183597e3524d906cd58c9c1df38"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pPdrX5Ih769sfHiybbQkPojOkfe4GGLgwHRcjN1WkpLZAvKwY5w7WKf+4KBGH9cPPaM3UxB9nSEe54ySibw9DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T06:48:25.899529Z","bundle_sha256":"eb070683a6ce8950b4c5bd3ab58cb9e03f8b50fb7b1801ef5e42188979865b7e"}}