{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:VIJZTCYEA7GCHGRYT3UIKEMBGI","short_pith_number":"pith:VIJZTCYE","schema_version":"1.0","canonical_sha256":"aa13998b0407cc239a389ee885118132341885a0d9ea2cc7387bf786b020dee4","source":{"kind":"arxiv","id":"2606.10773","version":1},"attestation_state":"computed","paper":{"title":"Nonequilibrium Green Functions Simulations for Large Correlated Systems","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Erik Schroedter, Jan-Philip Joost, Michael Bonitz","submitted_at":"2026-06-09T12:27:31Z","abstract_excerpt":"Correlated real-time dynamics in large, spatially inhomogeneous quantum systems remain difficult to access with nonequilibrium many-body methods. Two-time nonequilibrium Green functions (NEGF) retain dynamical correlations but their computational runtime grows cubically with the number of time steps $N_\\mathrm{t}$. This scaling bottleneck could recently be overcome by introducing the G1--G2 scheme that is linear in $N_\\mathrm{t}$, but requires propagation of a two-particle correlation function and may suffer from numerical instabilities. This has restricted simulations to small systems with $N"},"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":"2606.10773","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-06-09T12:27:31Z","cross_cats_sorted":[],"title_canon_sha256":"d66551412ccdb77fbedc8c283b2b39ffc90dc74002dbb1a6f35b5feb11de603c","abstract_canon_sha256":"56ddd5e281e391f8b9f54d762b6b89c8f4d1fd702c513c35e17ff50693894daf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-10T01:10:39.866600Z","signature_b64":"3WZ7ruRfoh7T5ZHVtS3CiFEw7wtIaJoOAMfm5FBcHNFZ9UAMkLXDk3GQ8VJm4lyS39HayvgrYMCHJ4wPamVIAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa13998b0407cc239a389ee885118132341885a0d9ea2cc7387bf786b020dee4","last_reissued_at":"2026-06-10T01:10:39.866135Z","signature_status":"signed_v1","first_computed_at":"2026-06-10T01:10:39.866135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Nonequilibrium Green Functions Simulations for Large Correlated Systems","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Erik Schroedter, Jan-Philip Joost, Michael Bonitz","submitted_at":"2026-06-09T12:27:31Z","abstract_excerpt":"Correlated real-time dynamics in large, spatially inhomogeneous quantum systems remain difficult to access with nonequilibrium many-body methods. Two-time nonequilibrium Green functions (NEGF) retain dynamical correlations but their computational runtime grows cubically with the number of time steps $N_\\mathrm{t}$. This scaling bottleneck could recently be overcome by introducing the G1--G2 scheme that is linear in $N_\\mathrm{t}$, but requires propagation of a two-particle correlation function and may suffer from numerical instabilities. This has restricted simulations to small systems with $N"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.10773","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.10773/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":"2606.10773","created_at":"2026-06-10T01:10:39.866206+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.10773v1","created_at":"2026-06-10T01:10:39.866206+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.10773","created_at":"2026-06-10T01:10:39.866206+00:00"},{"alias_kind":"pith_short_12","alias_value":"VIJZTCYEA7GC","created_at":"2026-06-10T01:10:39.866206+00:00"},{"alias_kind":"pith_short_16","alias_value":"VIJZTCYEA7GCHGRY","created_at":"2026-06-10T01:10:39.866206+00:00"},{"alias_kind":"pith_short_8","alias_value":"VIJZTCYE","created_at":"2026-06-10T01:10:39.866206+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/VIJZTCYEA7GCHGRYT3UIKEMBGI","json":"https://pith.science/pith/VIJZTCYEA7GCHGRYT3UIKEMBGI.json","graph_json":"https://pith.science/api/pith-number/VIJZTCYEA7GCHGRYT3UIKEMBGI/graph.json","events_json":"https://pith.science/api/pith-number/VIJZTCYEA7GCHGRYT3UIKEMBGI/events.json","paper":"https://pith.science/paper/VIJZTCYE"},"agent_actions":{"view_html":"https://pith.science/pith/VIJZTCYEA7GCHGRYT3UIKEMBGI","download_json":"https://pith.science/pith/VIJZTCYEA7GCHGRYT3UIKEMBGI.json","view_paper":"https://pith.science/paper/VIJZTCYE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.10773&json=true","fetch_graph":"https://pith.science/api/pith-number/VIJZTCYEA7GCHGRYT3UIKEMBGI/graph.json","fetch_events":"https://pith.science/api/pith-number/VIJZTCYEA7GCHGRYT3UIKEMBGI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VIJZTCYEA7GCHGRYT3UIKEMBGI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VIJZTCYEA7GCHGRYT3UIKEMBGI/action/storage_attestation","attest_author":"https://pith.science/pith/VIJZTCYEA7GCHGRYT3UIKEMBGI/action/author_attestation","sign_citation":"https://pith.science/pith/VIJZTCYEA7GCHGRYT3UIKEMBGI/action/citation_signature","submit_replication":"https://pith.science/pith/VIJZTCYEA7GCHGRYT3UIKEMBGI/action/replication_record"}},"created_at":"2026-06-10T01:10:39.866206+00:00","updated_at":"2026-06-10T01:10:39.866206+00:00"}