{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:T5GS2XC3NKBA4AUDHIIJ2FYAIR","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":"5bf313ee11324ada3a9c3b760bf66471d672f13b52606882ebd6fa81462a9be8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-16T09:11:43Z","title_canon_sha256":"c470109ea8d620cc8b3a0e25d947be5a409482eb38b8f6466ba811de2741ec9f"},"schema_version":"1.0","source":{"id":"1504.04148","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.04148","created_at":"2026-05-18T01:34:54Z"},{"alias_kind":"arxiv_version","alias_value":"1504.04148v2","created_at":"2026-05-18T01:34:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.04148","created_at":"2026-05-18T01:34:54Z"},{"alias_kind":"pith_short_12","alias_value":"T5GS2XC3NKBA","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"T5GS2XC3NKBA4AUD","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"T5GS2XC3","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:d624b5ce5b579a99d481941e7ee58624437a7165375097170ab0ffcc82177f6b","target":"graph","created_at":"2026-05-18T01:34:54Z","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 describe a criterion for the detection of entanglement between two multi-boson systems. The criterion is based on calculating correlations of Gell-Mann matrices with a fixed boson number on each subsystem. This applies naturally to systems such as two entangled spinor Bose-Einstein condensates. We apply our criterion to several experimentally motivated examples, such as an $ S^z S^z $ entangled BECs, ac Stark shift induced two-mode squeezed BECs, and photons under parametric down conversion. We find that entanglement can be detected for all parameter regions for the most general criterion. ","authors_text":"Adrian Kolodziejski, Danny Rosseau, Kamil Kostrzewa, Marcin Markiewicz, Tim Byrnes, Wieslaw Laskowski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-16T09:11:43Z","title":"Correlation-based entanglement criterion in bipartite multiboson systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.04148","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":"sha256:97cb2498e734a452788a02c4054c87389726a537cf791a7c4f7e090b15e52171","target":"record","created_at":"2026-05-18T01:34:54Z","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":"5bf313ee11324ada3a9c3b760bf66471d672f13b52606882ebd6fa81462a9be8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-16T09:11:43Z","title_canon_sha256":"c470109ea8d620cc8b3a0e25d947be5a409482eb38b8f6466ba811de2741ec9f"},"schema_version":"1.0","source":{"id":"1504.04148","kind":"arxiv","version":2}},"canonical_sha256":"9f4d2d5c5b6a820e02833a109d170044666a5ae13b1a9da8a569a6d4b839cac0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9f4d2d5c5b6a820e02833a109d170044666a5ae13b1a9da8a569a6d4b839cac0","first_computed_at":"2026-05-18T01:34:54.762358Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:34:54.762358Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"meEbiMPXdggbKWUClnTJoUfuMaePwVIwFpMgVj8B0FE1EZogGPG9I2emMWQKQvnNdHzzGRJUwZk1uDs2rSXlAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:34:54.763008Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.04148","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:97cb2498e734a452788a02c4054c87389726a537cf791a7c4f7e090b15e52171","sha256:d624b5ce5b579a99d481941e7ee58624437a7165375097170ab0ffcc82177f6b"],"state_sha256":"bc1279b64424ab89ade4eb2c08b548ee4732dbabaee044104a505d91b5f73831"}