{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:HML5YKXN2RYD2EBZJULJAKYN4X","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":"b024727887fc9f17b7501d18a4f70ff72b0cf76ae4e5f2f56db8aef45ea94d66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-04-21T00:30:10Z","title_canon_sha256":"42ba5e247a00d107ceefcd5bd002dff4963ef09938c5e782962ee07ea373da85"},"schema_version":"1.0","source":{"id":"1104.4145","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.4145","created_at":"2026-05-18T02:02:17Z"},{"alias_kind":"arxiv_version","alias_value":"1104.4145v2","created_at":"2026-05-18T02:02:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.4145","created_at":"2026-05-18T02:02:17Z"},{"alias_kind":"pith_short_12","alias_value":"HML5YKXN2RYD","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"HML5YKXN2RYD2EBZ","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"HML5YKXN","created_at":"2026-05-18T12:26:30Z"}],"graph_snapshots":[{"event_id":"sha256:3e982638231cc1c72c57aee7e8a4af6e2cac2132ee8b29abb301455f7a3a8744","target":"graph","created_at":"2026-05-18T02:02:17Z","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 simplest optomechanical system with a focus on the bistable regime. The covariance matrix formalism allows us to study both cooling and entanglement in a unified framework. We identify two key factors governing entanglement, namely the bistability parameter, i.e. the distance from the end of a stable branch in the bistable regime, and the effective detuning, and we describe the optimum regime where entanglement is greatest. We also show that in general entanglement is a non-monotonic function of optomechanical coupling. This is especially important in understanding the optomechani","authors_text":"A. R. Bahrampour, C. Simon, R. Ghobadi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-04-21T00:30:10Z","title":"Quantum Optomechanics in the Bistable Regime"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.4145","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":"sha256:2d30743d8f19c08f755749bbe3a6db69195546ddbc0f438c85383ca77683283b","target":"record","created_at":"2026-05-18T02:02:17Z","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":"b024727887fc9f17b7501d18a4f70ff72b0cf76ae4e5f2f56db8aef45ea94d66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-04-21T00:30:10Z","title_canon_sha256":"42ba5e247a00d107ceefcd5bd002dff4963ef09938c5e782962ee07ea373da85"},"schema_version":"1.0","source":{"id":"1104.4145","kind":"arxiv","version":2}},"canonical_sha256":"3b17dc2aedd4703d10394d16902b0de5db79a7d8b1b52c7c00b31c7f162d714a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3b17dc2aedd4703d10394d16902b0de5db79a7d8b1b52c7c00b31c7f162d714a","first_computed_at":"2026-05-18T02:02:17.115188Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:17.115188Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4W+KK78tpQuDFx5JvQTLfh7acrknS7zPj1YmVCy0US1YmAyDkjpvuM0QGco2TeMW2nF2SQkCbj6Ms2habOBgDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:17.115914Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.4145","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2d30743d8f19c08f755749bbe3a6db69195546ddbc0f438c85383ca77683283b","sha256:3e982638231cc1c72c57aee7e8a4af6e2cac2132ee8b29abb301455f7a3a8744"],"state_sha256":"ec20a47eef4f10a67d278d88da0f3b3b4d76d82d5de6d21b0d39e10557c66abb"}