{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:UJX5BM3T7MAIAWNGW5NU2LE6XT","short_pith_number":"pith:UJX5BM3T","canonical_record":{"source":{"id":"1506.03673","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-11T13:56:34Z","cross_cats_sorted":[],"title_canon_sha256":"166ef5e42082e5776849f60e2853151f494ce5993785f4153524dcaebd67fcd7","abstract_canon_sha256":"295e1e778d51f559557edc4e6250265fc2f7bdf46e124f0beac79477f2d2ad91"},"schema_version":"1.0"},"canonical_sha256":"a26fd0b373fb008059a6b75b4d2c9ebcd060b99ae12fbf7b8b9ab38c41d3c925","source":{"kind":"arxiv","id":"1506.03673","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.03673","created_at":"2026-05-18T01:53:03Z"},{"alias_kind":"arxiv_version","alias_value":"1506.03673v1","created_at":"2026-05-18T01:53:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.03673","created_at":"2026-05-18T01:53:03Z"},{"alias_kind":"pith_short_12","alias_value":"UJX5BM3T7MAI","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UJX5BM3T7MAIAWNG","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UJX5BM3T","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:UJX5BM3T7MAIAWNGW5NU2LE6XT","target":"record","payload":{"canonical_record":{"source":{"id":"1506.03673","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-11T13:56:34Z","cross_cats_sorted":[],"title_canon_sha256":"166ef5e42082e5776849f60e2853151f494ce5993785f4153524dcaebd67fcd7","abstract_canon_sha256":"295e1e778d51f559557edc4e6250265fc2f7bdf46e124f0beac79477f2d2ad91"},"schema_version":"1.0"},"canonical_sha256":"a26fd0b373fb008059a6b75b4d2c9ebcd060b99ae12fbf7b8b9ab38c41d3c925","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:03.574376Z","signature_b64":"EvxwhX+isVNhAWJ/i7A/M+PZsfnY4RCyAFlKoJE8932r6sbivrZXP6UPj0CndrCaOzlXWtcfhUmovv4PY3vgCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a26fd0b373fb008059a6b75b4d2c9ebcd060b99ae12fbf7b8b9ab38c41d3c925","last_reissued_at":"2026-05-18T01:53:03.573930Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:03.573930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.03673","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:53:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OEcqzrtlbXrrL76c8Z6KbKasfKLo7cZtbhV7l+2WzF8qKF7AcpXA0/RYmH9ZV+j65+ZPofQzdpvYQqVDtDJrCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T09:55:38.902725Z"},"content_sha256":"1a6fea1e9e5be59474bc7778b43073a42d0d9ef93247f1102ebefa83b3dbcf86","schema_version":"1.0","event_id":"sha256:1a6fea1e9e5be59474bc7778b43073a42d0d9ef93247f1102ebefa83b3dbcf86"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:UJX5BM3T7MAIAWNGW5NU2LE6XT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An entangling atomtronic beamsplitter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"C.V. Chianca, M.K. Olsen","submitted_at":"2015-06-11T13:56:34Z","abstract_excerpt":"We propose and analyse the use of a three-well Bose-Hubbard model for the creation of two spatially separated entangled atomic samples. Our three wells are in a linear configuration, with all atoms initially in the middle well, which gives some spatial separation of the two end wells. The evolution from the initial quantum state allows for the development of entanglement between the atomic modes in the two end wells. Using inseparability criteria developed by Hillery and Zubairy, we show how the detected entanglement is time dependent, oscillating with the well occupations. We suggest and anal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.03673","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:53:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ff5zA675ye4kSV3tFW5u4+Mag2aenFfT9T22246kgzjjFj+hkmmRmm+5BVYpdsvm8ZP/d2oRAfFEWrlYfHjgBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T09:55:38.903072Z"},"content_sha256":"3c434cde17a2f69d899f4ba3b643282274fb8c370411a1854428fa522f1adad1","schema_version":"1.0","event_id":"sha256:3c434cde17a2f69d899f4ba3b643282274fb8c370411a1854428fa522f1adad1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UJX5BM3T7MAIAWNGW5NU2LE6XT/bundle.json","state_url":"https://pith.science/pith/UJX5BM3T7MAIAWNGW5NU2LE6XT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UJX5BM3T7MAIAWNGW5NU2LE6XT/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":"2026-05-28T09:55:38Z","links":{"resolver":"https://pith.science/pith/UJX5BM3T7MAIAWNGW5NU2LE6XT","bundle":"https://pith.science/pith/UJX5BM3T7MAIAWNGW5NU2LE6XT/bundle.json","state":"https://pith.science/pith/UJX5BM3T7MAIAWNGW5NU2LE6XT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UJX5BM3T7MAIAWNGW5NU2LE6XT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:UJX5BM3T7MAIAWNGW5NU2LE6XT","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":"295e1e778d51f559557edc4e6250265fc2f7bdf46e124f0beac79477f2d2ad91","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-11T13:56:34Z","title_canon_sha256":"166ef5e42082e5776849f60e2853151f494ce5993785f4153524dcaebd67fcd7"},"schema_version":"1.0","source":{"id":"1506.03673","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.03673","created_at":"2026-05-18T01:53:03Z"},{"alias_kind":"arxiv_version","alias_value":"1506.03673v1","created_at":"2026-05-18T01:53:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.03673","created_at":"2026-05-18T01:53:03Z"},{"alias_kind":"pith_short_12","alias_value":"UJX5BM3T7MAI","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UJX5BM3T7MAIAWNG","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UJX5BM3T","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:3c434cde17a2f69d899f4ba3b643282274fb8c370411a1854428fa522f1adad1","target":"graph","created_at":"2026-05-18T01:53:03Z","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 propose and analyse the use of a three-well Bose-Hubbard model for the creation of two spatially separated entangled atomic samples. Our three wells are in a linear configuration, with all atoms initially in the middle well, which gives some spatial separation of the two end wells. The evolution from the initial quantum state allows for the development of entanglement between the atomic modes in the two end wells. Using inseparability criteria developed by Hillery and Zubairy, we show how the detected entanglement is time dependent, oscillating with the well occupations. We suggest and anal","authors_text":"C.V. Chianca, M.K. Olsen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-11T13:56:34Z","title":"An entangling atomtronic beamsplitter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.03673","kind":"arxiv","version":1},"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":"sha256:1a6fea1e9e5be59474bc7778b43073a42d0d9ef93247f1102ebefa83b3dbcf86","target":"record","created_at":"2026-05-18T01:53:03Z","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":"295e1e778d51f559557edc4e6250265fc2f7bdf46e124f0beac79477f2d2ad91","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-06-11T13:56:34Z","title_canon_sha256":"166ef5e42082e5776849f60e2853151f494ce5993785f4153524dcaebd67fcd7"},"schema_version":"1.0","source":{"id":"1506.03673","kind":"arxiv","version":1}},"canonical_sha256":"a26fd0b373fb008059a6b75b4d2c9ebcd060b99ae12fbf7b8b9ab38c41d3c925","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a26fd0b373fb008059a6b75b4d2c9ebcd060b99ae12fbf7b8b9ab38c41d3c925","first_computed_at":"2026-05-18T01:53:03.573930Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:53:03.573930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EvxwhX+isVNhAWJ/i7A/M+PZsfnY4RCyAFlKoJE8932r6sbivrZXP6UPj0CndrCaOzlXWtcfhUmovv4PY3vgCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:53:03.574376Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.03673","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a6fea1e9e5be59474bc7778b43073a42d0d9ef93247f1102ebefa83b3dbcf86","sha256:3c434cde17a2f69d899f4ba3b643282274fb8c370411a1854428fa522f1adad1"],"state_sha256":"50903933a76d00483eca0759f127a1c6a9570a991817244920e00472dc65c770"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MCL+nJX56rEv5FShrHjrqRvTKHq36v+S230+JEOiWyHyMFw7Hb8LREfQi5sYdJTdWBOKYvqbJUmNSWUCH0LCBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T09:55:38.905149Z","bundle_sha256":"f9be1cc6e69f09d15b8eb3dd44e3b9407ac38157854069c8468ca8cadefe8da5"}}