{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:UPK2Z7BZYY7SACWV7C5V7VRTLN","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":"bed0ec10d10668112f01faad75562682af63715652e196a0fc94b2977c3ba84b","cross_cats_sorted":["cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-06-08T15:20:52Z","title_canon_sha256":"bb9afd70fd2429a413dd7bb93979e4ca5d33596c1ff08aa3c3df7631fb9ce4a7"},"schema_version":"1.0","source":{"id":"1706.02636","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.02636","created_at":"2026-05-18T00:42:44Z"},{"alias_kind":"arxiv_version","alias_value":"1706.02636v1","created_at":"2026-05-18T00:42:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.02636","created_at":"2026-05-18T00:42:44Z"},{"alias_kind":"pith_short_12","alias_value":"UPK2Z7BZYY7S","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"UPK2Z7BZYY7SACWV","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"UPK2Z7BZ","created_at":"2026-05-18T12:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:618284c3ba7123314021518e8ddd432edb6a904840f4efc98c86cccd61d901eb","target":"graph","created_at":"2026-05-18T00:42:44Z","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":"Irreversible processes are frequently adopted to account for the entropy increase in classical thermodynamics. However, the corresponding physical origins are not always clear, e.g. in a free expansion process, a typical model in textbooks. In this letter, we study the entropy change during free expansion for a particle with the thermal de Broglie wavelength ($\\lambda_{T}$) in a one-dimensional square trap with size $L$. By solely including quantum dephasing as an irreversible process, we recover classical result of entropy increase in the classical region ($L\\gg\\lambda_{T}$), while predict pr","authors_text":"Da-Wei Wang, Hui Dong, M.B. Kim","cross_cats":["cond-mat.quant-gas"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-06-08T15:20:52Z","title":"How isolated is enough for an \"isolated\" system in statistical mechanics?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.02636","kind":"arxiv","version":1},"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:d0873a3a2877c72a85e6be106fb17508c5d3465306d4ae0c6c78cbbec5cf4710","target":"record","created_at":"2026-05-18T00:42:44Z","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":"bed0ec10d10668112f01faad75562682af63715652e196a0fc94b2977c3ba84b","cross_cats_sorted":["cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-06-08T15:20:52Z","title_canon_sha256":"bb9afd70fd2429a413dd7bb93979e4ca5d33596c1ff08aa3c3df7631fb9ce4a7"},"schema_version":"1.0","source":{"id":"1706.02636","kind":"arxiv","version":1}},"canonical_sha256":"a3d5acfc39c63f200ad5f8bb5fd6335b60db1bab0302ebf49d330fbe84462a27","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3d5acfc39c63f200ad5f8bb5fd6335b60db1bab0302ebf49d330fbe84462a27","first_computed_at":"2026-05-18T00:42:44.962719Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:44.962719Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RgDrp1RdwfpDIcStBquLdoBVaT0NTXQJMhuuuhfkjJIBfqH/77Jp0FKXPQvuvgPQa/FmT+qlaprHx2YrpR9FCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:44.963447Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.02636","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d0873a3a2877c72a85e6be106fb17508c5d3465306d4ae0c6c78cbbec5cf4710","sha256:618284c3ba7123314021518e8ddd432edb6a904840f4efc98c86cccd61d901eb"],"state_sha256":"a20e19bcc5a3eb26068c4a906c517b5f5d981343b65cbf9e9e25f6f27a45d588"}