{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:GN3F2X7VOQNRBYMN4QNBNZQYVS","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":"5e25f2bdf25aa8e06b9235f7c41acdcb890da3f3be6096f7e0d3f1089dfb2c58","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-08-18T01:48:21Z","title_canon_sha256":"b0a585153cf0a58f9517bd8f21ebc61e7ca14f2e26fbfcb311ad718fb82ce0ed"},"schema_version":"1.0","source":{"id":"2208.08591","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.08591","created_at":"2026-07-05T04:49:35Z"},{"alias_kind":"arxiv_version","alias_value":"2208.08591v1","created_at":"2026-07-05T04:49:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.08591","created_at":"2026-07-05T04:49:35Z"},{"alias_kind":"pith_short_12","alias_value":"GN3F2X7VOQNR","created_at":"2026-07-05T04:49:35Z"},{"alias_kind":"pith_short_16","alias_value":"GN3F2X7VOQNRBYMN","created_at":"2026-07-05T04:49:35Z"},{"alias_kind":"pith_short_8","alias_value":"GN3F2X7V","created_at":"2026-07-05T04:49:35Z"}],"graph_snapshots":[{"event_id":"sha256:f16ffd674c98d3d084d6b5898876cb746251e7e48bdd6a6f864a23fff0ba78e5","target":"graph","created_at":"2026-07-05T04:49:35Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2208.08591/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we propose a quantum unitary downfolding formalism based on the driven similarity renormalization group (QDSRG) that may be combined with quantum algorithms for both noisy and fault-tolerant hardware. The QDSRG is a classical polynomially-scaling downfolding method that avoids the evaluation of costly three- and higher-body reduced density matrices while retaining the accuracy of classical multireference many-body theories. We calibrate and test the QDSRG on several challenging chemical problems and propose a strategy for avoiding classical exponential-scaling steps in the QDSRG ","authors_text":"Chenyang Li, Francesco A. Evangelista, Renke Huang","cross_cats":["physics.chem-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-08-18T01:48:21Z","title":"Leveraging small scale quantum computers with unitarily downfolded Hamiltonians"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.08591","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":"sha256:60512ff5a5573a21b819419b4ba78e2879ad4a6b2365e21e8c897882c7a49843","target":"record","created_at":"2026-07-05T04:49:35Z","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":"5e25f2bdf25aa8e06b9235f7c41acdcb890da3f3be6096f7e0d3f1089dfb2c58","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-08-18T01:48:21Z","title_canon_sha256":"b0a585153cf0a58f9517bd8f21ebc61e7ca14f2e26fbfcb311ad718fb82ce0ed"},"schema_version":"1.0","source":{"id":"2208.08591","kind":"arxiv","version":1}},"canonical_sha256":"33765d5ff5741b10e18de41a16e618acbf6f7e2ac5180f92c4e7e3d397e86070","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"33765d5ff5741b10e18de41a16e618acbf6f7e2ac5180f92c4e7e3d397e86070","first_computed_at":"2026-07-05T04:49:35.607976Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:49:35.607976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f8a7J1F5IlUA54g1XuspAf5yEVm0lpU0Fn8TL/f28ZrwZkq8UJHtEX5IqmRHuTpDFseRjU8Z2L7qsacQ5qI3AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:49:35.608308Z","signed_message":"canonical_sha256_bytes"},"source_id":"2208.08591","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60512ff5a5573a21b819419b4ba78e2879ad4a6b2365e21e8c897882c7a49843","sha256:f16ffd674c98d3d084d6b5898876cb746251e7e48bdd6a6f864a23fff0ba78e5"],"state_sha256":"45200dbc12e3f281abde1d530b9dd20796d3206b5340a0c37477c85b4a4f4268"}