{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:EGZXFHEVOWTMPRN7UMRLQQSRKN","short_pith_number":"pith:EGZXFHEV","schema_version":"1.0","canonical_sha256":"21b3729c9575a6c7c5bfa322b842515353bb611255d866b3f7ec22edea87115a","source":{"kind":"arxiv","id":"2006.15852","version":2},"attestation_state":"computed","paper":{"title":"The impacts of optimization algorithm and basis size on the accuracy and efficiency of variational quantum eigensolver","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.chem-ph","authors_text":"Chao Zhang, Chen Fu, Dengdong Fan, Pengxiang Xu, Rui-Qin Zhang, Shiyu Du, Xian-Hu Zha","submitted_at":"2020-06-29T07:50:24Z","abstract_excerpt":"Variational quantum eigensolver (VQE) is demonstrated to be the promising methodology for quantum chemistry based on near-term quantum devices. However, many problems are yet to be investigated for this methodology, such as the influences of optimization algorithm and basis size on the accuracy and efficiency for quantum computing. To address these issues, five molecules (H2, LiH, HF, N2 and F2) are studied in this work based on the VQE method using unitary coupled cluster (UCC) ansatz. The performance of the gradient optimization L-BFGS-B is compared with that of the direct search method COBY"},"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":"2006.15852","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-06-29T07:50:24Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"64b6765fd0304caef405b09b78a1fe59c87cfc310a4dfd4996e0e8eaae2f9745","abstract_canon_sha256":"7d07c01f6d4c45c6b402d934afef015e5114994c43826b9e9c6fc0e03fd2afec"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:07:03.696405Z","signature_b64":"zzscmglvtdRS1K4IXNsqYKQJbRPESjbdiXEL8KeUYiPemDSQVVNxfVxYg3H4SjhRzmNu1UMJYSsvqnMBgsEuBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21b3729c9575a6c7c5bfa322b842515353bb611255d866b3f7ec22edea87115a","last_reissued_at":"2026-07-05T02:07:03.695922Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:07:03.695922Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The impacts of optimization algorithm and basis size on the accuracy and efficiency of variational quantum eigensolver","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.chem-ph","authors_text":"Chao Zhang, Chen Fu, Dengdong Fan, Pengxiang Xu, Rui-Qin Zhang, Shiyu Du, Xian-Hu Zha","submitted_at":"2020-06-29T07:50:24Z","abstract_excerpt":"Variational quantum eigensolver (VQE) is demonstrated to be the promising methodology for quantum chemistry based on near-term quantum devices. However, many problems are yet to be investigated for this methodology, such as the influences of optimization algorithm and basis size on the accuracy and efficiency for quantum computing. To address these issues, five molecules (H2, LiH, HF, N2 and F2) are studied in this work based on the VQE method using unitary coupled cluster (UCC) ansatz. The performance of the gradient optimization L-BFGS-B is compared with that of the direct search method COBY"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.15852","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2006.15852/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":"2006.15852","created_at":"2026-07-05T02:07:03.695981+00:00"},{"alias_kind":"arxiv_version","alias_value":"2006.15852v2","created_at":"2026-07-05T02:07:03.695981+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.15852","created_at":"2026-07-05T02:07:03.695981+00:00"},{"alias_kind":"pith_short_12","alias_value":"EGZXFHEVOWTM","created_at":"2026-07-05T02:07:03.695981+00:00"},{"alias_kind":"pith_short_16","alias_value":"EGZXFHEVOWTMPRN7","created_at":"2026-07-05T02:07:03.695981+00:00"},{"alias_kind":"pith_short_8","alias_value":"EGZXFHEV","created_at":"2026-07-05T02:07:03.695981+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/EGZXFHEVOWTMPRN7UMRLQQSRKN","json":"https://pith.science/pith/EGZXFHEVOWTMPRN7UMRLQQSRKN.json","graph_json":"https://pith.science/api/pith-number/EGZXFHEVOWTMPRN7UMRLQQSRKN/graph.json","events_json":"https://pith.science/api/pith-number/EGZXFHEVOWTMPRN7UMRLQQSRKN/events.json","paper":"https://pith.science/paper/EGZXFHEV"},"agent_actions":{"view_html":"https://pith.science/pith/EGZXFHEVOWTMPRN7UMRLQQSRKN","download_json":"https://pith.science/pith/EGZXFHEVOWTMPRN7UMRLQQSRKN.json","view_paper":"https://pith.science/paper/EGZXFHEV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2006.15852&json=true","fetch_graph":"https://pith.science/api/pith-number/EGZXFHEVOWTMPRN7UMRLQQSRKN/graph.json","fetch_events":"https://pith.science/api/pith-number/EGZXFHEVOWTMPRN7UMRLQQSRKN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EGZXFHEVOWTMPRN7UMRLQQSRKN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EGZXFHEVOWTMPRN7UMRLQQSRKN/action/storage_attestation","attest_author":"https://pith.science/pith/EGZXFHEVOWTMPRN7UMRLQQSRKN/action/author_attestation","sign_citation":"https://pith.science/pith/EGZXFHEVOWTMPRN7UMRLQQSRKN/action/citation_signature","submit_replication":"https://pith.science/pith/EGZXFHEVOWTMPRN7UMRLQQSRKN/action/replication_record"}},"created_at":"2026-07-05T02:07:03.695981+00:00","updated_at":"2026-07-05T02:07:03.695981+00:00"}