{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:NOW366GWAX3XZ7QEXZT5C4CNZ6","short_pith_number":"pith:NOW366GW","schema_version":"1.0","canonical_sha256":"6badbf78d605f77cfe04be67d1704dcfae135e61c587268fb724c1422fcd9179","source":{"kind":"arxiv","id":"1809.10967","version":2},"attestation_state":"computed","paper":{"title":"Signatures of a universal jump in the superfluid density in two-dimensional Bose gas with finite number of particles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"Krzysztof Gawryluk, Miros{\\l}aw Brewczyk","submitted_at":"2018-09-28T11:34:33Z","abstract_excerpt":"We study, within the classical fields approximation, a two-dimensional weakly interacting uniform Bose gas of a finite number of atoms. By using a grand canonical ensemble formalism we show that such systems exhibit, in addition to the Berezinskii-Kosterlitz-Thouless (BKT) and thermal phases, the intermediate region. This region is characterized by a decay of current-current correlations at low momenta and by an algebraic decay of the first-order correlations with an exponent being larger than the critical value predicted by the BKT theory. The density of the superfluid fraction at the tempera"},"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":"1809.10967","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-09-28T11:34:33Z","cross_cats_sorted":[],"title_canon_sha256":"3602c784164ef19adb6b2cb545b83498b6b184e2d171a8cae56aa6e392e06acc","abstract_canon_sha256":"6f8f2faf2025d040e590a9018db5c78d1991b36266000dadf089abbd79285779"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:23.715636Z","signature_b64":"9SXivJ2TXuzzYeNI+74yUvTLxvc/JfZ5y6AH+JhkoFzoRUJz+C+AHBmvMMODmIh0t5aJg6l9+7WsPkXLSgQ1Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6badbf78d605f77cfe04be67d1704dcfae135e61c587268fb724c1422fcd9179","last_reissued_at":"2026-05-17T23:50:23.714783Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:23.714783Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Signatures of a universal jump in the superfluid density in two-dimensional Bose gas with finite number of particles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"Krzysztof Gawryluk, Miros{\\l}aw Brewczyk","submitted_at":"2018-09-28T11:34:33Z","abstract_excerpt":"We study, within the classical fields approximation, a two-dimensional weakly interacting uniform Bose gas of a finite number of atoms. By using a grand canonical ensemble formalism we show that such systems exhibit, in addition to the Berezinskii-Kosterlitz-Thouless (BKT) and thermal phases, the intermediate region. This region is characterized by a decay of current-current correlations at low momenta and by an algebraic decay of the first-order correlations with an exponent being larger than the critical value predicted by the BKT theory. The density of the superfluid fraction at the tempera"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.10967","kind":"arxiv","version":2},"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":"1809.10967","created_at":"2026-05-17T23:50:23.714927+00:00"},{"alias_kind":"arxiv_version","alias_value":"1809.10967v2","created_at":"2026-05-17T23:50:23.714927+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.10967","created_at":"2026-05-17T23:50:23.714927+00:00"},{"alias_kind":"pith_short_12","alias_value":"NOW366GWAX3X","created_at":"2026-05-18T12:32:40.477152+00:00"},{"alias_kind":"pith_short_16","alias_value":"NOW366GWAX3XZ7QE","created_at":"2026-05-18T12:32:40.477152+00:00"},{"alias_kind":"pith_short_8","alias_value":"NOW366GW","created_at":"2026-05-18T12:32:40.477152+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/NOW366GWAX3XZ7QEXZT5C4CNZ6","json":"https://pith.science/pith/NOW366GWAX3XZ7QEXZT5C4CNZ6.json","graph_json":"https://pith.science/api/pith-number/NOW366GWAX3XZ7QEXZT5C4CNZ6/graph.json","events_json":"https://pith.science/api/pith-number/NOW366GWAX3XZ7QEXZT5C4CNZ6/events.json","paper":"https://pith.science/paper/NOW366GW"},"agent_actions":{"view_html":"https://pith.science/pith/NOW366GWAX3XZ7QEXZT5C4CNZ6","download_json":"https://pith.science/pith/NOW366GWAX3XZ7QEXZT5C4CNZ6.json","view_paper":"https://pith.science/paper/NOW366GW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1809.10967&json=true","fetch_graph":"https://pith.science/api/pith-number/NOW366GWAX3XZ7QEXZT5C4CNZ6/graph.json","fetch_events":"https://pith.science/api/pith-number/NOW366GWAX3XZ7QEXZT5C4CNZ6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NOW366GWAX3XZ7QEXZT5C4CNZ6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NOW366GWAX3XZ7QEXZT5C4CNZ6/action/storage_attestation","attest_author":"https://pith.science/pith/NOW366GWAX3XZ7QEXZT5C4CNZ6/action/author_attestation","sign_citation":"https://pith.science/pith/NOW366GWAX3XZ7QEXZT5C4CNZ6/action/citation_signature","submit_replication":"https://pith.science/pith/NOW366GWAX3XZ7QEXZT5C4CNZ6/action/replication_record"}},"created_at":"2026-05-17T23:50:23.714927+00:00","updated_at":"2026-05-17T23:50:23.714927+00:00"}