{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:C4DMCBLPMORNW73KKOLJGO5ULC","short_pith_number":"pith:C4DMCBLP","canonical_record":{"source":{"id":"0907.4546","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-27T05:48:13Z","cross_cats_sorted":[],"title_canon_sha256":"017989cfadfa03c48399981dcff18e32bbf58713dc8270dbc26e6c5d63ceaab9","abstract_canon_sha256":"7bc97a0563175ce15818e9dbcebf42d5220f2396bd90a79cf6c1af01ebbc1204"},"schema_version":"1.0"},"canonical_sha256":"1706c1056f63a2db7f6a5396933bb45892202a18a3c5497cecb81163a48ab88b","source":{"kind":"arxiv","id":"0907.4546","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.4546","created_at":"2026-05-18T02:12:53Z"},{"alias_kind":"arxiv_version","alias_value":"0907.4546v2","created_at":"2026-05-18T02:12:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.4546","created_at":"2026-05-18T02:12:53Z"},{"alias_kind":"pith_short_12","alias_value":"C4DMCBLPMORN","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"C4DMCBLPMORNW73K","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"C4DMCBLP","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:C4DMCBLPMORNW73KKOLJGO5ULC","target":"record","payload":{"canonical_record":{"source":{"id":"0907.4546","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-27T05:48:13Z","cross_cats_sorted":[],"title_canon_sha256":"017989cfadfa03c48399981dcff18e32bbf58713dc8270dbc26e6c5d63ceaab9","abstract_canon_sha256":"7bc97a0563175ce15818e9dbcebf42d5220f2396bd90a79cf6c1af01ebbc1204"},"schema_version":"1.0"},"canonical_sha256":"1706c1056f63a2db7f6a5396933bb45892202a18a3c5497cecb81163a48ab88b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:53.453746Z","signature_b64":"Bnou+vzBv9+n3aiFRrGR8b6ZmFUd7cPvODjoFTWWQWiaSN0QD8XeSgBJhl/m2DMx9XXyVhEstP4/wlU2Q90bAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1706c1056f63a2db7f6a5396933bb45892202a18a3c5497cecb81163a48ab88b","last_reissued_at":"2026-05-18T02:12:53.452964Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:53.452964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0907.4546","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:12:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LRysLAAfgzcbB8VhALzczL9cigssu6/92oleDaGQvwtaGtf3aEuetQFLQvao7+1noMLaCfAtw/DD8oRNEtFyBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T14:36:19.023702Z"},"content_sha256":"aff16b19b3a7fdcbc87792df54089ff8678e5fb6c0620cfa43b501be8e14e69e","schema_version":"1.0","event_id":"sha256:aff16b19b3a7fdcbc87792df54089ff8678e5fb6c0620cfa43b501be8e14e69e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:C4DMCBLPMORNW73KKOLJGO5ULC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Creation of pure multi-mode entangled states in a ring cavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Gao-Xiang Li, Zbigniew Ficek","submitted_at":"2009-07-27T05:48:13Z","abstract_excerpt":"Practical schemes for creation of multi-mode squeezed (entangled) states of atomic ensembles located inside a high-Q ring cavity are discussed. It is assumed that the cavity is composed of two degenerate mutually counter-propagating modes that can simultaneously couple to the atomic ensembles with the same coupling strengths. The ensembles are composed of ultra-cold atoms which are modeled as four-level systems driven by two laser fields, both co-propagating with one of the cavity directions. We illustrate a procedure that constructs multi-mode squeezed states from the vacuum by a unitary tran"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.4546","kind":"arxiv","version":2},"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":"2026-05-18T02:12:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g2nBS1sMdya/hoScxkX4741y6xaeeOMfKAkO9LWXZ2P1eIw+Y2jJwAqnKon2Rj6oor5iGbt3jSLQCGRpF+EiAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T14:36:19.024145Z"},"content_sha256":"730006852503a1d09d597e536a1cf530b506e2435bdba52de0fccb54f7ba91cd","schema_version":"1.0","event_id":"sha256:730006852503a1d09d597e536a1cf530b506e2435bdba52de0fccb54f7ba91cd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C4DMCBLPMORNW73KKOLJGO5ULC/bundle.json","state_url":"https://pith.science/pith/C4DMCBLPMORNW73KKOLJGO5ULC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C4DMCBLPMORNW73KKOLJGO5ULC/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":"2026-05-29T14:36:19Z","links":{"resolver":"https://pith.science/pith/C4DMCBLPMORNW73KKOLJGO5ULC","bundle":"https://pith.science/pith/C4DMCBLPMORNW73KKOLJGO5ULC/bundle.json","state":"https://pith.science/pith/C4DMCBLPMORNW73KKOLJGO5ULC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C4DMCBLPMORNW73KKOLJGO5ULC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:C4DMCBLPMORNW73KKOLJGO5ULC","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":"7bc97a0563175ce15818e9dbcebf42d5220f2396bd90a79cf6c1af01ebbc1204","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-27T05:48:13Z","title_canon_sha256":"017989cfadfa03c48399981dcff18e32bbf58713dc8270dbc26e6c5d63ceaab9"},"schema_version":"1.0","source":{"id":"0907.4546","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.4546","created_at":"2026-05-18T02:12:53Z"},{"alias_kind":"arxiv_version","alias_value":"0907.4546v2","created_at":"2026-05-18T02:12:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.4546","created_at":"2026-05-18T02:12:53Z"},{"alias_kind":"pith_short_12","alias_value":"C4DMCBLPMORN","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"C4DMCBLPMORNW73K","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"C4DMCBLP","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:730006852503a1d09d597e536a1cf530b506e2435bdba52de0fccb54f7ba91cd","target":"graph","created_at":"2026-05-18T02:12:53Z","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":"Practical schemes for creation of multi-mode squeezed (entangled) states of atomic ensembles located inside a high-Q ring cavity are discussed. It is assumed that the cavity is composed of two degenerate mutually counter-propagating modes that can simultaneously couple to the atomic ensembles with the same coupling strengths. The ensembles are composed of ultra-cold atoms which are modeled as four-level systems driven by two laser fields, both co-propagating with one of the cavity directions. We illustrate a procedure that constructs multi-mode squeezed states from the vacuum by a unitary tran","authors_text":"Gao-Xiang Li, Zbigniew Ficek","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-27T05:48:13Z","title":"Creation of pure multi-mode entangled states in a ring cavity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.4546","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:aff16b19b3a7fdcbc87792df54089ff8678e5fb6c0620cfa43b501be8e14e69e","target":"record","created_at":"2026-05-18T02:12:53Z","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":"7bc97a0563175ce15818e9dbcebf42d5220f2396bd90a79cf6c1af01ebbc1204","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-27T05:48:13Z","title_canon_sha256":"017989cfadfa03c48399981dcff18e32bbf58713dc8270dbc26e6c5d63ceaab9"},"schema_version":"1.0","source":{"id":"0907.4546","kind":"arxiv","version":2}},"canonical_sha256":"1706c1056f63a2db7f6a5396933bb45892202a18a3c5497cecb81163a48ab88b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1706c1056f63a2db7f6a5396933bb45892202a18a3c5497cecb81163a48ab88b","first_computed_at":"2026-05-18T02:12:53.452964Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:53.452964Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Bnou+vzBv9+n3aiFRrGR8b6ZmFUd7cPvODjoFTWWQWiaSN0QD8XeSgBJhl/m2DMx9XXyVhEstP4/wlU2Q90bAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:53.453746Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.4546","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aff16b19b3a7fdcbc87792df54089ff8678e5fb6c0620cfa43b501be8e14e69e","sha256:730006852503a1d09d597e536a1cf530b506e2435bdba52de0fccb54f7ba91cd"],"state_sha256":"28fe1feb16687ae25bfb5c07b11be3d3c3f99165f866f7349cf993a557cec9d5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D7GoLOiX+MKXeI8jBQK3h02Lm2792uV3KlHVTy0GPAdaq7sW2yKgrO85JcW7qc8AuMnLXddNfDEEACrc6V91Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T14:36:19.026978Z","bundle_sha256":"f71af2252f2bec82ebc6dcef093dc9024610b126e79f9af29c5f9a735ecda4e6"}}