{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:VLAEDRLHHBNH6IDGQ46U56J2QT","short_pith_number":"pith:VLAEDRLH","schema_version":"1.0","canonical_sha256":"aac041c567385a7f2066873d4ef93a84edbfce50b1f292e75e0b242930974f7a","source":{"kind":"arxiv","id":"1305.2014","version":1},"attestation_state":"computed","paper":{"title":"Quantum Confinement and Negative Heat Capacity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.stat-mech","authors_text":"Fahhad Alharbi, Marcelo Carignano, Pablo Serra, Sabre Kais","submitted_at":"2013-05-09T06:34:24Z","abstract_excerpt":"Thermodynamics dictates that the specific heat of a system is strictly non-negative. However, in finite classical systems there are well known theoretical and experimental cases where this rule is violated, in particular finite atomic clusters. Here, we show for the first time that negative heat capacity can also occur in finite quantum systems. The physical scenario on which this effect might be experimentally observed is discussed. Observing such an effect might lead to the design of new light harvesting nano devices, in particular a solar nano refrigerator."},"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":"1305.2014","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2013-05-09T06:34:24Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"9873b048c187e431b10292a2bbc2a15d91e2f357d699d6bc888f745f9b005c6a","abstract_canon_sha256":"9ba350121e969b23df5b537c2034c84a9387c86bd64cf49c9427dc627d85645d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:04.332479Z","signature_b64":"phEfq/p/v5grigiyHPZCK+t6ctKdpIi4PvRQKQucnmsECc3NUUKctVwxuhfPQa7YF/peyE4dtATk8mEHVuGLDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aac041c567385a7f2066873d4ef93a84edbfce50b1f292e75e0b242930974f7a","last_reissued_at":"2026-05-18T01:50:04.331707Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:04.331707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum Confinement and Negative Heat Capacity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.stat-mech","authors_text":"Fahhad Alharbi, Marcelo Carignano, Pablo Serra, Sabre Kais","submitted_at":"2013-05-09T06:34:24Z","abstract_excerpt":"Thermodynamics dictates that the specific heat of a system is strictly non-negative. However, in finite classical systems there are well known theoretical and experimental cases where this rule is violated, in particular finite atomic clusters. Here, we show for the first time that negative heat capacity can also occur in finite quantum systems. The physical scenario on which this effect might be experimentally observed is discussed. Observing such an effect might lead to the design of new light harvesting nano devices, in particular a solar nano refrigerator."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.2014","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":"1305.2014","created_at":"2026-05-18T01:50:04.331841+00:00"},{"alias_kind":"arxiv_version","alias_value":"1305.2014v1","created_at":"2026-05-18T01:50:04.331841+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.2014","created_at":"2026-05-18T01:50:04.331841+00:00"},{"alias_kind":"pith_short_12","alias_value":"VLAEDRLHHBNH","created_at":"2026-05-18T12:28:04.890932+00:00"},{"alias_kind":"pith_short_16","alias_value":"VLAEDRLHHBNH6IDG","created_at":"2026-05-18T12:28:04.890932+00:00"},{"alias_kind":"pith_short_8","alias_value":"VLAEDRLH","created_at":"2026-05-18T12:28:04.890932+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":4,"internal_anchor_count":2,"sample":[{"citing_arxiv_id":"1906.11177","citing_title":"Data-driven prediction of vortex-induced vibration response of marine risers subjected to three-dimensional current","ref_index":16,"is_internal_anchor":true},{"citing_arxiv_id":"2601.19117","citing_title":"Optimized $k$-means color quantization of digital images in machine-based and human perception-based colorspaces","ref_index":62,"is_internal_anchor":true},{"citing_arxiv_id":"2605.06955","citing_title":"Kurtosis-Guided Denoising Score Matching for Tabular Anomaly Detection","ref_index":29,"is_internal_anchor":false},{"citing_arxiv_id":"2604.22043","citing_title":"Audio Video Verbal Analysis (AVVA) for Capturing Classroom Dialogues","ref_index":143,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/VLAEDRLHHBNH6IDGQ46U56J2QT","json":"https://pith.science/pith/VLAEDRLHHBNH6IDGQ46U56J2QT.json","graph_json":"https://pith.science/api/pith-number/VLAEDRLHHBNH6IDGQ46U56J2QT/graph.json","events_json":"https://pith.science/api/pith-number/VLAEDRLHHBNH6IDGQ46U56J2QT/events.json","paper":"https://pith.science/paper/VLAEDRLH"},"agent_actions":{"view_html":"https://pith.science/pith/VLAEDRLHHBNH6IDGQ46U56J2QT","download_json":"https://pith.science/pith/VLAEDRLHHBNH6IDGQ46U56J2QT.json","view_paper":"https://pith.science/paper/VLAEDRLH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1305.2014&json=true","fetch_graph":"https://pith.science/api/pith-number/VLAEDRLHHBNH6IDGQ46U56J2QT/graph.json","fetch_events":"https://pith.science/api/pith-number/VLAEDRLHHBNH6IDGQ46U56J2QT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VLAEDRLHHBNH6IDGQ46U56J2QT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VLAEDRLHHBNH6IDGQ46U56J2QT/action/storage_attestation","attest_author":"https://pith.science/pith/VLAEDRLHHBNH6IDGQ46U56J2QT/action/author_attestation","sign_citation":"https://pith.science/pith/VLAEDRLHHBNH6IDGQ46U56J2QT/action/citation_signature","submit_replication":"https://pith.science/pith/VLAEDRLHHBNH6IDGQ46U56J2QT/action/replication_record"}},"created_at":"2026-05-18T01:50:04.331841+00:00","updated_at":"2026-05-18T01:50:04.331841+00:00"}