{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:WEWCDMHHZSQUYCDH3Z2SBEEZ5R","short_pith_number":"pith:WEWCDMHH","schema_version":"1.0","canonical_sha256":"b12c21b0e7cca14c0867de75209099ec5c1e2bf36a29467d64fc5fdb1d3a51c5","source":{"kind":"arxiv","id":"1101.0308","version":1},"attestation_state":"computed","paper":{"title":"Spin Squeezing and Quantum Correlations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A.R. Usha Devi, Sudha","submitted_at":"2010-12-31T23:24:28Z","abstract_excerpt":"Recent years have witnessed revolutionary improvement in the production, manipulation, characterization and quantification of multiatom (multiqubit) states - because of their promising applications in high precision atomic clocks, atomic interferrometry, quantum metrology and quantum information protocols. In the characterization and quantification of non-classical atomic correlations, two concepts namely, spin squeezing and quantum entanglement emerge. While spin squeezing originates from the uncertainty relation between atomic collective angular momentum operators, entanglement is a peculiar"},"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":"1101.0308","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-31T23:24:28Z","cross_cats_sorted":[],"title_canon_sha256":"11ff5e2e291d08ecc324296fc37e207a4f341bff894c8d92f3c4cdf12321bb19","abstract_canon_sha256":"61f58f8d69ef0dca26068d2e3cf1a2d288d51e850b74c174a880ed01cd2cbc80"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:32:10.603458Z","signature_b64":"2nUIzWjMEA2keosU35cNCoQ0N4yqYZmtx5Roac+PGv+eHQtujD7lsAxdBvDLMWHRrjZiA9QrHs6jL21TGMuAAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b12c21b0e7cca14c0867de75209099ec5c1e2bf36a29467d64fc5fdb1d3a51c5","last_reissued_at":"2026-05-18T04:32:10.603010Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:32:10.603010Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Spin Squeezing and Quantum Correlations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A.R. Usha Devi, Sudha","submitted_at":"2010-12-31T23:24:28Z","abstract_excerpt":"Recent years have witnessed revolutionary improvement in the production, manipulation, characterization and quantification of multiatom (multiqubit) states - because of their promising applications in high precision atomic clocks, atomic interferrometry, quantum metrology and quantum information protocols. In the characterization and quantification of non-classical atomic correlations, two concepts namely, spin squeezing and quantum entanglement emerge. While spin squeezing originates from the uncertainty relation between atomic collective angular momentum operators, entanglement is a peculiar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.0308","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1101.0308","created_at":"2026-05-18T04:32:10.603066+00:00"},{"alias_kind":"arxiv_version","alias_value":"1101.0308v1","created_at":"2026-05-18T04:32:10.603066+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.0308","created_at":"2026-05-18T04:32:10.603066+00:00"},{"alias_kind":"pith_short_12","alias_value":"WEWCDMHHZSQU","created_at":"2026-05-18T12:26:15.391820+00:00"},{"alias_kind":"pith_short_16","alias_value":"WEWCDMHHZSQUYCDH","created_at":"2026-05-18T12:26:15.391820+00:00"},{"alias_kind":"pith_short_8","alias_value":"WEWCDMHH","created_at":"2026-05-18T12:26:15.391820+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/WEWCDMHHZSQUYCDH3Z2SBEEZ5R","json":"https://pith.science/pith/WEWCDMHHZSQUYCDH3Z2SBEEZ5R.json","graph_json":"https://pith.science/api/pith-number/WEWCDMHHZSQUYCDH3Z2SBEEZ5R/graph.json","events_json":"https://pith.science/api/pith-number/WEWCDMHHZSQUYCDH3Z2SBEEZ5R/events.json","paper":"https://pith.science/paper/WEWCDMHH"},"agent_actions":{"view_html":"https://pith.science/pith/WEWCDMHHZSQUYCDH3Z2SBEEZ5R","download_json":"https://pith.science/pith/WEWCDMHHZSQUYCDH3Z2SBEEZ5R.json","view_paper":"https://pith.science/paper/WEWCDMHH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1101.0308&json=true","fetch_graph":"https://pith.science/api/pith-number/WEWCDMHHZSQUYCDH3Z2SBEEZ5R/graph.json","fetch_events":"https://pith.science/api/pith-number/WEWCDMHHZSQUYCDH3Z2SBEEZ5R/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WEWCDMHHZSQUYCDH3Z2SBEEZ5R/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WEWCDMHHZSQUYCDH3Z2SBEEZ5R/action/storage_attestation","attest_author":"https://pith.science/pith/WEWCDMHHZSQUYCDH3Z2SBEEZ5R/action/author_attestation","sign_citation":"https://pith.science/pith/WEWCDMHHZSQUYCDH3Z2SBEEZ5R/action/citation_signature","submit_replication":"https://pith.science/pith/WEWCDMHHZSQUYCDH3Z2SBEEZ5R/action/replication_record"}},"created_at":"2026-05-18T04:32:10.603066+00:00","updated_at":"2026-05-18T04:32:10.603066+00:00"}