{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:HNW5LTG375RWTDTMXYOVFQHVQK","short_pith_number":"pith:HNW5LTG3","schema_version":"1.0","canonical_sha256":"3b6dd5ccdbff63698e6cbe1d52c0f5828003608da9a56b733a5886b970a2f067","source":{"kind":"arxiv","id":"2009.10932","version":2},"attestation_state":"computed","paper":{"title":"Superconducting fluctuations in overdoped Bi$_2$Sr$_2$CaCu$_2$O$_{8+\\delta}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Christoph Meingast, Dan Zhao, Dong-Hui Lu, Dongjoon Song, Dung-Hai Lee, Hiroshi Eisaki, Makoto Hashimoto, Robert J. Birgeneau, Su-Di Chen, Tao Wu, Thomas P. Devereaux, Xian-Hui Chen, Yoshiyuki Yoshida, Yu He, Zhi-Xun Shen, Zi-Xiang Li","submitted_at":"2020-09-23T05:51:23Z","abstract_excerpt":"Fluctuating superconductivity - vestigial Cooper pairing in the resistive state of a material - is usually associated with low dimensionality, strong disorder or low carrier density. Here, we report single particle spectroscopic, thermodynamic and magnetic evidence for persistent superconducting fluctuations in heavily hole-doped cuprate superconductor Bi$_2$Sr$_2$CaCu$_2$O$_{8+\\delta}$ ($T_c$ = 66~K) despite the high carrier density. With a sign-problem free quantum Monte Carlo calculation, we show how a partially flat band at ($\\pi$,0) can help enhance superconducting phase fluctuations. Fin"},"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":"2009.10932","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2020-09-23T05:51:23Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.str-el"],"title_canon_sha256":"fb9972816e7c9ea14f1880f1e9964a916aacf92ad0602c996d001749b96ee72a","abstract_canon_sha256":"9c01522b9c450b2cff76f88638b4b86a197b8459ab9da5bf395059001bade4e4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:18:24.935091Z","signature_b64":"1PKL0Tta4V9IOyJzqa8LUWi15j+pij/JKUDI4wwjHYE5a0FSG/R8uUGI7ui1XRJQ7bk0s13tcDBo/jSFKHOPBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3b6dd5ccdbff63698e6cbe1d52c0f5828003608da9a56b733a5886b970a2f067","last_reissued_at":"2026-07-05T03:18:24.934629Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:18:24.934629Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Superconducting fluctuations in overdoped Bi$_2$Sr$_2$CaCu$_2$O$_{8+\\delta}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Christoph Meingast, Dan Zhao, Dong-Hui Lu, Dongjoon Song, Dung-Hai Lee, Hiroshi Eisaki, Makoto Hashimoto, Robert J. Birgeneau, Su-Di Chen, Tao Wu, Thomas P. Devereaux, Xian-Hui Chen, Yoshiyuki Yoshida, Yu He, Zhi-Xun Shen, Zi-Xiang Li","submitted_at":"2020-09-23T05:51:23Z","abstract_excerpt":"Fluctuating superconductivity - vestigial Cooper pairing in the resistive state of a material - is usually associated with low dimensionality, strong disorder or low carrier density. Here, we report single particle spectroscopic, thermodynamic and magnetic evidence for persistent superconducting fluctuations in heavily hole-doped cuprate superconductor Bi$_2$Sr$_2$CaCu$_2$O$_{8+\\delta}$ ($T_c$ = 66~K) despite the high carrier density. With a sign-problem free quantum Monte Carlo calculation, we show how a partially flat band at ($\\pi$,0) can help enhance superconducting phase fluctuations. Fin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.10932","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2009.10932/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2009.10932","created_at":"2026-07-05T03:18:24.934689+00:00"},{"alias_kind":"arxiv_version","alias_value":"2009.10932v2","created_at":"2026-07-05T03:18:24.934689+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.10932","created_at":"2026-07-05T03:18:24.934689+00:00"},{"alias_kind":"pith_short_12","alias_value":"HNW5LTG375RW","created_at":"2026-07-05T03:18:24.934689+00:00"},{"alias_kind":"pith_short_16","alias_value":"HNW5LTG375RWTDTM","created_at":"2026-07-05T03:18:24.934689+00:00"},{"alias_kind":"pith_short_8","alias_value":"HNW5LTG3","created_at":"2026-07-05T03:18:24.934689+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/HNW5LTG375RWTDTMXYOVFQHVQK","json":"https://pith.science/pith/HNW5LTG375RWTDTMXYOVFQHVQK.json","graph_json":"https://pith.science/api/pith-number/HNW5LTG375RWTDTMXYOVFQHVQK/graph.json","events_json":"https://pith.science/api/pith-number/HNW5LTG375RWTDTMXYOVFQHVQK/events.json","paper":"https://pith.science/paper/HNW5LTG3"},"agent_actions":{"view_html":"https://pith.science/pith/HNW5LTG375RWTDTMXYOVFQHVQK","download_json":"https://pith.science/pith/HNW5LTG375RWTDTMXYOVFQHVQK.json","view_paper":"https://pith.science/paper/HNW5LTG3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2009.10932&json=true","fetch_graph":"https://pith.science/api/pith-number/HNW5LTG375RWTDTMXYOVFQHVQK/graph.json","fetch_events":"https://pith.science/api/pith-number/HNW5LTG375RWTDTMXYOVFQHVQK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HNW5LTG375RWTDTMXYOVFQHVQK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HNW5LTG375RWTDTMXYOVFQHVQK/action/storage_attestation","attest_author":"https://pith.science/pith/HNW5LTG375RWTDTMXYOVFQHVQK/action/author_attestation","sign_citation":"https://pith.science/pith/HNW5LTG375RWTDTMXYOVFQHVQK/action/citation_signature","submit_replication":"https://pith.science/pith/HNW5LTG375RWTDTMXYOVFQHVQK/action/replication_record"}},"created_at":"2026-07-05T03:18:24.934689+00:00","updated_at":"2026-07-05T03:18:24.934689+00:00"}