{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:QF7PD2IHTFJYREJZSODZO7SJS7","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":"e577cb766dcfcf52adac92b04bcb5a0670a55dd659034bcf4e9e7306cd909fab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2010-11-10T23:35:59Z","title_canon_sha256":"d83c7f2eb0e1bb814c19df8327b81f6b1cafcd210a7e89e51ba56c202977a8d4"},"schema_version":"1.0","source":{"id":"1011.2532","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.2532","created_at":"2026-05-18T00:34:05Z"},{"alias_kind":"arxiv_version","alias_value":"1011.2532v2","created_at":"2026-05-18T00:34:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.2532","created_at":"2026-05-18T00:34:05Z"},{"alias_kind":"pith_short_12","alias_value":"QF7PD2IHTFJY","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"QF7PD2IHTFJYREJZ","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"QF7PD2IH","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:61f3eb1f41b9533827fe45279b5efe27eb73b1a0011e24dfbca7b268088b73a3","target":"graph","created_at":"2026-05-18T00:34:05Z","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 perform detailed analytical and numerical studies of a recently proposed method for a spectroscopic measurement of the superfluid fraction of an ultracold atomic gas [N. R. Cooper and Z. Hadzibabic, Phys. Rev. Lett. 104, 030401 (2010)]. Previous theoretical work is extended by explicitly including the effects of non-zero temperature and interactions, and assessing the quantitative accuracy of the proposed measurement for a one-component Bose gas. We show that for suitably chosen experimental parameters the method yields an experimentally detectable signal and a sufficiently accurate measure","authors_text":"N. R. Cooper, S. T. John, Z. Hadzibabic","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2010-11-10T23:35:59Z","title":"A Spectroscopic Method to Measure the Superfluid Fraction of an Ultracold Atomic Gas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.2532","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":"sha256:8baaa7aa469204423a139f5bb4e9f549a20664f94e95b3156960ed6d3004a934","target":"record","created_at":"2026-05-18T00:34:05Z","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":"e577cb766dcfcf52adac92b04bcb5a0670a55dd659034bcf4e9e7306cd909fab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2010-11-10T23:35:59Z","title_canon_sha256":"d83c7f2eb0e1bb814c19df8327b81f6b1cafcd210a7e89e51ba56c202977a8d4"},"schema_version":"1.0","source":{"id":"1011.2532","kind":"arxiv","version":2}},"canonical_sha256":"817ef1e90799538891399387977e4997eb3342baa7e8c538a525bf124304be7e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"817ef1e90799538891399387977e4997eb3342baa7e8c538a525bf124304be7e","first_computed_at":"2026-05-18T00:34:05.537768Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:34:05.537768Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ePFXjFdtbXcdIeniN/SeLNwpcjzdimcnDCHXKkgrQqUyc2dNwcpXZHmc3xWJj9DkgPKQZVcAJiqfxCuNaf+NBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:34:05.538491Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.2532","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8baaa7aa469204423a139f5bb4e9f549a20664f94e95b3156960ed6d3004a934","sha256:61f3eb1f41b9533827fe45279b5efe27eb73b1a0011e24dfbca7b268088b73a3"],"state_sha256":"7200aa46b3946fd8ac6abe363958199669690eea0b9485cb3fdee08e751273fe"}