{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:E3DKDY7DHATO3APEJARQIEBM37","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":"5b625df743552053885cc88b3c94bccb74c5634ddc353ca7ff5d2cd454c33157","cross_cats_sorted":["cs.NA","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-12-28T22:32:40Z","title_canon_sha256":"1af85ef4645525e4c4152e87ae262eaf1d91b4fcc3528293953786e436c93c57"},"schema_version":"1.0","source":{"id":"2312.17390","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.17390","created_at":"2026-07-05T08:14:21Z"},{"alias_kind":"arxiv_version","alias_value":"2312.17390v2","created_at":"2026-07-05T08:14:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.17390","created_at":"2026-07-05T08:14:21Z"},{"alias_kind":"pith_short_12","alias_value":"E3DKDY7DHATO","created_at":"2026-07-05T08:14:21Z"},{"alias_kind":"pith_short_16","alias_value":"E3DKDY7DHATO3APE","created_at":"2026-07-05T08:14:21Z"},{"alias_kind":"pith_short_8","alias_value":"E3DKDY7D","created_at":"2026-07-05T08:14:21Z"}],"graph_snapshots":[{"event_id":"sha256:2d957ba50afa45aa8978949322554a483f6f29153f86712d2b2fcc0ab2f65510","target":"graph","created_at":"2026-07-05T08:14:21Z","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/2312.17390/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This work proposes a protocol for Fermionic Hamiltonian learning. For the Hubbard model defined on a bounded-degree graph, the Heisenberg-limited scaling is achieved while allowing for state preparation and measurement errors. To achieve $\\epsilon$-accurate estimation for all parameters, only $\\tilde{\\mathcal{O}}(\\epsilon^{-1})$ total evolution time is needed, and the constant factor is independent of the system size. Moreover, our method only involves simple one or two-site Fermionic manipulations, which is desirable for experiment implementation.","authors_text":"Haoya Li, Hongkang Ni, Lexing Ying","cross_cats":["cs.NA","math.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-12-28T22:32:40Z","title":"Quantum Hamiltonian Learning for the Fermi-Hubbard Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.17390","kind":"arxiv","version":2},"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:c29a13ee374b5a15498a54a01dfdef4514588aea07dec25ba9b74833d5fc938b","target":"record","created_at":"2026-07-05T08:14:21Z","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":"5b625df743552053885cc88b3c94bccb74c5634ddc353ca7ff5d2cd454c33157","cross_cats_sorted":["cs.NA","math.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-12-28T22:32:40Z","title_canon_sha256":"1af85ef4645525e4c4152e87ae262eaf1d91b4fcc3528293953786e436c93c57"},"schema_version":"1.0","source":{"id":"2312.17390","kind":"arxiv","version":2}},"canonical_sha256":"26c6a1e3e33826ed81e4482304102cdff45380182cc8c1b38408a3c94e4e5e31","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"26c6a1e3e33826ed81e4482304102cdff45380182cc8c1b38408a3c94e4e5e31","first_computed_at":"2026-07-05T08:14:21.213399Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:14:21.213399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HnR9BsLB+BZEe9GzSR3La7c32viHmix02BhIwubH7pHnPG7HeEMc229O+vLLtvHwEO4KqNxUTBnWcruwoZVFAw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:14:21.213901Z","signed_message":"canonical_sha256_bytes"},"source_id":"2312.17390","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c29a13ee374b5a15498a54a01dfdef4514588aea07dec25ba9b74833d5fc938b","sha256:2d957ba50afa45aa8978949322554a483f6f29153f86712d2b2fcc0ab2f65510"],"state_sha256":"9e95ef1bc658460860b41259354e9a3943619f65563170bc1393521bebdd9656"}