{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:ME2XBLR6VBDPMY3IFFNVMQSNAO","short_pith_number":"pith:ME2XBLR6","schema_version":"1.0","canonical_sha256":"613570ae3ea846f66368295b56424d03afec1f3c97839ed68625ddfab481dd51","source":{"kind":"arxiv","id":"quant-ph/0404049","version":3},"attestation_state":"computed","paper":{"title":"Multipartite continuous-variable entanglement from concurrent nonlinearities","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Daruo Xie, Gregory Jennings, Olivier Pfister, Raphael Pooser, Sheng Feng","submitted_at":"2004-04-07T19:18:48Z","abstract_excerpt":"We show theoretically that concurrent interactions in a second-order nonlinear medium placed inside an optical resonator can generate multipartite entanglement between the resonator modes. We show that there is a mathematical connexion between this system and van Loock and Braunstein's proposal for entangling N continuous quantum optical variables by interfering the outputs of N degenerate optical parametric amplifiers (OPA) at a N-port beam splitter. Our configuration, however, requires only one nondegenerate OPA and no interferometer. In a preliminary experimental study, we observe the concu"},"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":"quant-ph/0404049","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2004-04-07T19:18:48Z","cross_cats_sorted":[],"title_canon_sha256":"659bbda1e4c93071f4a2b304e3538306ff6c6b5b1683bb0a132619a053ea50f1","abstract_canon_sha256":"b956d4f494e2478a8c55e707495d0e5e00d7034aef626b18495e492476b457c4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:50:15.912384Z","signature_b64":"BUzmN85xu9/DM7/rDb1gJbvgem+g9kDAkq/YZj+kAnlRWj4HPu2tZlJgLhTDrX8qbzco/sFk1zPEy5/VG7OkCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"613570ae3ea846f66368295b56424d03afec1f3c97839ed68625ddfab481dd51","last_reissued_at":"2026-07-04T16:50:15.912021Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:50:15.912021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multipartite continuous-variable entanglement from concurrent nonlinearities","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Daruo Xie, Gregory Jennings, Olivier Pfister, Raphael Pooser, Sheng Feng","submitted_at":"2004-04-07T19:18:48Z","abstract_excerpt":"We show theoretically that concurrent interactions in a second-order nonlinear medium placed inside an optical resonator can generate multipartite entanglement between the resonator modes. We show that there is a mathematical connexion between this system and van Loock and Braunstein's proposal for entangling N continuous quantum optical variables by interfering the outputs of N degenerate optical parametric amplifiers (OPA) at a N-port beam splitter. Our configuration, however, requires only one nondegenerate OPA and no interferometer. In a preliminary experimental study, we observe the concu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0404049","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/quant-ph/0404049/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"quant-ph/0404049","created_at":"2026-07-04T16:50:15.912077+00:00"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0404049v3","created_at":"2026-07-04T16:50:15.912077+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0404049","created_at":"2026-07-04T16:50:15.912077+00:00"},{"alias_kind":"pith_short_12","alias_value":"ME2XBLR6VBDP","created_at":"2026-07-04T16:50:15.912077+00:00"},{"alias_kind":"pith_short_16","alias_value":"ME2XBLR6VBDPMY3I","created_at":"2026-07-04T16:50:15.912077+00:00"},{"alias_kind":"pith_short_8","alias_value":"ME2XBLR6","created_at":"2026-07-04T16:50:15.912077+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/ME2XBLR6VBDPMY3IFFNVMQSNAO","json":"https://pith.science/pith/ME2XBLR6VBDPMY3IFFNVMQSNAO.json","graph_json":"https://pith.science/api/pith-number/ME2XBLR6VBDPMY3IFFNVMQSNAO/graph.json","events_json":"https://pith.science/api/pith-number/ME2XBLR6VBDPMY3IFFNVMQSNAO/events.json","paper":"https://pith.science/paper/ME2XBLR6"},"agent_actions":{"view_html":"https://pith.science/pith/ME2XBLR6VBDPMY3IFFNVMQSNAO","download_json":"https://pith.science/pith/ME2XBLR6VBDPMY3IFFNVMQSNAO.json","view_paper":"https://pith.science/paper/ME2XBLR6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=quant-ph/0404049&json=true","fetch_graph":"https://pith.science/api/pith-number/ME2XBLR6VBDPMY3IFFNVMQSNAO/graph.json","fetch_events":"https://pith.science/api/pith-number/ME2XBLR6VBDPMY3IFFNVMQSNAO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ME2XBLR6VBDPMY3IFFNVMQSNAO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ME2XBLR6VBDPMY3IFFNVMQSNAO/action/storage_attestation","attest_author":"https://pith.science/pith/ME2XBLR6VBDPMY3IFFNVMQSNAO/action/author_attestation","sign_citation":"https://pith.science/pith/ME2XBLR6VBDPMY3IFFNVMQSNAO/action/citation_signature","submit_replication":"https://pith.science/pith/ME2XBLR6VBDPMY3IFFNVMQSNAO/action/replication_record"}},"created_at":"2026-07-04T16:50:15.912077+00:00","updated_at":"2026-07-04T16:50:15.912077+00:00"}