{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:FBRA3AL4IM2FPHKKCNYAQDLVNT","short_pith_number":"pith:FBRA3AL4","schema_version":"1.0","canonical_sha256":"28620d817c4334579d4a1370080d756cd93ba3c23d094fca5a32bb8d331405e8","source":{"kind":"arxiv","id":"1112.3211","version":1},"attestation_state":"computed","paper":{"title":"Entangled photons from the polariton vacuum in a switchable optical cavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Adrian Auer, Guido Burkard","submitted_at":"2011-12-14T13:50:50Z","abstract_excerpt":"We study theoretically the entanglement of two-photon states in the ground state of the intersubband cavity system, the so-called polariton vacuum. The system consists of a sequence of doped quantum wells located inside a microcavity and the photons can interact with intersubband excitations inside the quantum wells. Using an explicit solution for the ground state of the system, operated in the ultrastrong coupling regime, a post-selection is introduced, where only certain two-photon states are considered and analyzed for mode entanglement. We find that a fast quench of the coupling creates en"},"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":"1112.3211","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-12-14T13:50:50Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"8eef2ffc19a5117e6341f34309e1c9fea12e5145db9519fc58e59c5397f255c2","abstract_canon_sha256":"381523ee653c9e3d5fa52fd3a50f7216e03bad82dfa3e5e9e9a96d79d2fc1d2d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:44.140628Z","signature_b64":"OAUqWJoDiLQXVb1HQaptOCnb/1rvUcSlyiTV688K81KmUDkTXrCH0F8OFkNrnqUEI2A/bBqj/893iBS2RHu+BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28620d817c4334579d4a1370080d756cd93ba3c23d094fca5a32bb8d331405e8","last_reissued_at":"2026-05-18T01:22:44.140090Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:44.140090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Entangled photons from the polariton vacuum in a switchable optical cavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Adrian Auer, Guido Burkard","submitted_at":"2011-12-14T13:50:50Z","abstract_excerpt":"We study theoretically the entanglement of two-photon states in the ground state of the intersubband cavity system, the so-called polariton vacuum. The system consists of a sequence of doped quantum wells located inside a microcavity and the photons can interact with intersubband excitations inside the quantum wells. Using an explicit solution for the ground state of the system, operated in the ultrastrong coupling regime, a post-selection is introduced, where only certain two-photon states are considered and analyzed for mode entanglement. We find that a fast quench of the coupling creates en"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.3211","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":"1112.3211","created_at":"2026-05-18T01:22:44.140165+00:00"},{"alias_kind":"arxiv_version","alias_value":"1112.3211v1","created_at":"2026-05-18T01:22:44.140165+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.3211","created_at":"2026-05-18T01:22:44.140165+00:00"},{"alias_kind":"pith_short_12","alias_value":"FBRA3AL4IM2F","created_at":"2026-05-18T12:26:28.662955+00:00"},{"alias_kind":"pith_short_16","alias_value":"FBRA3AL4IM2FPHKK","created_at":"2026-05-18T12:26:28.662955+00:00"},{"alias_kind":"pith_short_8","alias_value":"FBRA3AL4","created_at":"2026-05-18T12:26:28.662955+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/FBRA3AL4IM2FPHKKCNYAQDLVNT","json":"https://pith.science/pith/FBRA3AL4IM2FPHKKCNYAQDLVNT.json","graph_json":"https://pith.science/api/pith-number/FBRA3AL4IM2FPHKKCNYAQDLVNT/graph.json","events_json":"https://pith.science/api/pith-number/FBRA3AL4IM2FPHKKCNYAQDLVNT/events.json","paper":"https://pith.science/paper/FBRA3AL4"},"agent_actions":{"view_html":"https://pith.science/pith/FBRA3AL4IM2FPHKKCNYAQDLVNT","download_json":"https://pith.science/pith/FBRA3AL4IM2FPHKKCNYAQDLVNT.json","view_paper":"https://pith.science/paper/FBRA3AL4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1112.3211&json=true","fetch_graph":"https://pith.science/api/pith-number/FBRA3AL4IM2FPHKKCNYAQDLVNT/graph.json","fetch_events":"https://pith.science/api/pith-number/FBRA3AL4IM2FPHKKCNYAQDLVNT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FBRA3AL4IM2FPHKKCNYAQDLVNT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FBRA3AL4IM2FPHKKCNYAQDLVNT/action/storage_attestation","attest_author":"https://pith.science/pith/FBRA3AL4IM2FPHKKCNYAQDLVNT/action/author_attestation","sign_citation":"https://pith.science/pith/FBRA3AL4IM2FPHKKCNYAQDLVNT/action/citation_signature","submit_replication":"https://pith.science/pith/FBRA3AL4IM2FPHKKCNYAQDLVNT/action/replication_record"}},"created_at":"2026-05-18T01:22:44.140165+00:00","updated_at":"2026-05-18T01:22:44.140165+00:00"}