{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:IT3SJP3UXK7B3X42GKUCR44YV2","short_pith_number":"pith:IT3SJP3U","schema_version":"1.0","canonical_sha256":"44f724bf74babe1ddf9a32a828f398aeaf424e351c2b261dc568ddfb3e751301","source":{"kind":"arxiv","id":"1506.03057","version":2},"attestation_state":"computed","paper":{"title":"Interaction Picture Density Matrix Quantum Monte Carlo","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph"],"primary_cat":"cond-mat.str-el","authors_text":"D.K.K. Lee, Fionn D. Malone, James J. Shepherd, J.S. Spencer, N.S. Blunt, W.M.C. Foulkes","submitted_at":"2015-06-09T19:35:48Z","abstract_excerpt":"The recently developed density matrix quantum Monte Carlo (DMQMC) algorithm stochastically samples the N -body thermal density matrix and hence provides access to exact properties of many-particle quantum systems at arbitrary temperatures. We demonstrate that moving to the interaction picture provides substantial benefits when applying DMQMC to interacting fermions. In this first study, we focus on a system of much recent interest: the uniform electron gas in the warm dense regime. The basis set incompleteness error at finite temperature is investigated and extrapolated via a simple Monte Carl"},"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":"1506.03057","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-06-09T19:35:48Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"ff3987c14f2ff4833ab8210e5be3a8f7541b1f505c78d5a41e59dcaa72d34cfd","abstract_canon_sha256":"b0e0aeb9ce45734628897e776d366dba14a947f56a4d13adea29a0e9d75cf64e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:30:15.109360Z","signature_b64":"9Ei96yRUFEZCGPxWL6b7m5Xbz8TC+NhPqZcp3PICXPhfm9D2H/6o5imYPWCamNHEpHtcrWNGpQ3jbk5PbcSQCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"44f724bf74babe1ddf9a32a828f398aeaf424e351c2b261dc568ddfb3e751301","last_reissued_at":"2026-05-18T01:30:15.108749Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:30:15.108749Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Interaction Picture Density Matrix Quantum Monte Carlo","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph"],"primary_cat":"cond-mat.str-el","authors_text":"D.K.K. Lee, Fionn D. Malone, James J. Shepherd, J.S. Spencer, N.S. Blunt, W.M.C. Foulkes","submitted_at":"2015-06-09T19:35:48Z","abstract_excerpt":"The recently developed density matrix quantum Monte Carlo (DMQMC) algorithm stochastically samples the N -body thermal density matrix and hence provides access to exact properties of many-particle quantum systems at arbitrary temperatures. We demonstrate that moving to the interaction picture provides substantial benefits when applying DMQMC to interacting fermions. In this first study, we focus on a system of much recent interest: the uniform electron gas in the warm dense regime. The basis set incompleteness error at finite temperature is investigated and extrapolated via a simple Monte Carl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.03057","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":"1506.03057","created_at":"2026-05-18T01:30:15.108835+00:00"},{"alias_kind":"arxiv_version","alias_value":"1506.03057v2","created_at":"2026-05-18T01:30:15.108835+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.03057","created_at":"2026-05-18T01:30:15.108835+00:00"},{"alias_kind":"pith_short_12","alias_value":"IT3SJP3UXK7B","created_at":"2026-05-18T12:29:25.134429+00:00"},{"alias_kind":"pith_short_16","alias_value":"IT3SJP3UXK7B3X42","created_at":"2026-05-18T12:29:25.134429+00:00"},{"alias_kind":"pith_short_8","alias_value":"IT3SJP3U","created_at":"2026-05-18T12:29:25.134429+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/IT3SJP3UXK7B3X42GKUCR44YV2","json":"https://pith.science/pith/IT3SJP3UXK7B3X42GKUCR44YV2.json","graph_json":"https://pith.science/api/pith-number/IT3SJP3UXK7B3X42GKUCR44YV2/graph.json","events_json":"https://pith.science/api/pith-number/IT3SJP3UXK7B3X42GKUCR44YV2/events.json","paper":"https://pith.science/paper/IT3SJP3U"},"agent_actions":{"view_html":"https://pith.science/pith/IT3SJP3UXK7B3X42GKUCR44YV2","download_json":"https://pith.science/pith/IT3SJP3UXK7B3X42GKUCR44YV2.json","view_paper":"https://pith.science/paper/IT3SJP3U","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1506.03057&json=true","fetch_graph":"https://pith.science/api/pith-number/IT3SJP3UXK7B3X42GKUCR44YV2/graph.json","fetch_events":"https://pith.science/api/pith-number/IT3SJP3UXK7B3X42GKUCR44YV2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IT3SJP3UXK7B3X42GKUCR44YV2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IT3SJP3UXK7B3X42GKUCR44YV2/action/storage_attestation","attest_author":"https://pith.science/pith/IT3SJP3UXK7B3X42GKUCR44YV2/action/author_attestation","sign_citation":"https://pith.science/pith/IT3SJP3UXK7B3X42GKUCR44YV2/action/citation_signature","submit_replication":"https://pith.science/pith/IT3SJP3UXK7B3X42GKUCR44YV2/action/replication_record"}},"created_at":"2026-05-18T01:30:15.108835+00:00","updated_at":"2026-05-18T01:30:15.108835+00:00"}