{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:AR53EUDOC3EFSHMUUIUDVPWUHG","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":"8c8e095c41dffcca158cf615bae5fe103271fe8db03ef76cec4ca9759eaa963c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2023-05-25T08:59:49Z","title_canon_sha256":"e63f8835b9a33fd38cd5d53643e90ea25d75d297a247eee3009cca86c1ae0ca6"},"schema_version":"1.0","source":{"id":"2305.15868","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.15868","created_at":"2026-07-05T06:13:56Z"},{"alias_kind":"arxiv_version","alias_value":"2305.15868v1","created_at":"2026-07-05T06:13:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.15868","created_at":"2026-07-05T06:13:56Z"},{"alias_kind":"pith_short_12","alias_value":"AR53EUDOC3EF","created_at":"2026-07-05T06:13:56Z"},{"alias_kind":"pith_short_16","alias_value":"AR53EUDOC3EFSHMU","created_at":"2026-07-05T06:13:56Z"},{"alias_kind":"pith_short_8","alias_value":"AR53EUDO","created_at":"2026-07-05T06:13:56Z"}],"graph_snapshots":[{"event_id":"sha256:174c5f5623842b696a5960249cb7d3b69f2d06211c1361df5c0b8c199320f355","target":"graph","created_at":"2026-07-05T06:13:56Z","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/2305.15868/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Determining the low-energy eigenspectra of quantum many-body systems is a long-standing challenge in physics. In this work, we solve this problem by introducing two novel algorithms to determine low-energy eigenstates based on a compact matrix product state (MPS) representation of the multiple targeted eigenstates. The first algorithm utilizes a canonicalization approach that takes advantage of the imaginary-time evolution of multi-target MPS, offering faster convergence and ease of implementation. The second algorithm employs a variational approach that optimizes local tensors on the Grassman","authors_text":"Guanglei Xu, Haijun Liao, Runze Chi, Tao Xiang, Tong Liu, Xuan Li, Yibin Guo, Zongsheng Zhou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2023-05-25T08:59:49Z","title":"Accurate determination of low-energy eigenspectra with multi-target matrix product states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.15868","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":"sha256:658f5fc852fa495ce1849e6605d870cba4805791ef29f47ba8eee2364da593fb","target":"record","created_at":"2026-07-05T06:13:56Z","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":"8c8e095c41dffcca158cf615bae5fe103271fe8db03ef76cec4ca9759eaa963c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2023-05-25T08:59:49Z","title_canon_sha256":"e63f8835b9a33fd38cd5d53643e90ea25d75d297a247eee3009cca86c1ae0ca6"},"schema_version":"1.0","source":{"id":"2305.15868","kind":"arxiv","version":1}},"canonical_sha256":"047bb2506e16c8591d94a2283abed439a938bdbef56547ed587c1cda369185b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"047bb2506e16c8591d94a2283abed439a938bdbef56547ed587c1cda369185b7","first_computed_at":"2026-07-05T06:13:56.998125Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:13:56.998125Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aNuWyQKgEvxwE2Kn/frmpfglPF0DPiOPLO8w6n1Tw5Wzup4vE4TBW3VpQbNMmVQkxtKVsqH9XHyEez9unrWSDA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:13:56.998559Z","signed_message":"canonical_sha256_bytes"},"source_id":"2305.15868","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:658f5fc852fa495ce1849e6605d870cba4805791ef29f47ba8eee2364da593fb","sha256:174c5f5623842b696a5960249cb7d3b69f2d06211c1361df5c0b8c199320f355"],"state_sha256":"85fde1959b022c8330d07e89c47a5251e1aba9118e47a9be4a807643c686c924"}