{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:5HTHPFCCPL26MSCCKZAHL5EIYV","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":"4c378bed533ebc13bff12e5545da18082e0c07eafef4c8bcafc7eb0ca478f880","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-08-27T16:24:49Z","title_canon_sha256":"9a475f3dce89b71ad3b9ceeca2daf91ba4c397243e84c2a53a0e08e4f994b477"},"schema_version":"1.0","source":{"id":"2408.15179","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.15179","created_at":"2026-07-05T10:19:10Z"},{"alias_kind":"arxiv_version","alias_value":"2408.15179v3","created_at":"2026-07-05T10:19:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.15179","created_at":"2026-07-05T10:19:10Z"},{"alias_kind":"pith_short_12","alias_value":"5HTHPFCCPL26","created_at":"2026-07-05T10:19:10Z"},{"alias_kind":"pith_short_16","alias_value":"5HTHPFCCPL26MSCC","created_at":"2026-07-05T10:19:10Z"},{"alias_kind":"pith_short_8","alias_value":"5HTHPFCC","created_at":"2026-07-05T10:19:10Z"}],"graph_snapshots":[{"event_id":"sha256:4e003a3a3598011ee2f0c1ddc8806735902852cde5913a430963fdb63efe040a","target":"graph","created_at":"2026-07-05T10:19:10Z","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/2408.15179/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the exact ground states of the Su--Schrieffer--Heeger open chain and of the Kitaev open chain, using the Variational Quantum Eigensolver (VQE) algorithm. These models host symmetry-protected topological phases, characterized by edge modes with vanishing single-particle energy in the thermodynamic limit. The same fact prevents the standard VQE algorithm from converging to the correct ground state for finite chains, since it is quasi-degenerate in energy with other many-body states. Notably, this quasi-degeneracy cannot be removed by small perturbations, as in typical spin systems. We a","authors_text":"Carola Ciaramelletti, Luca Lepori, Martin Beseda, Mirko Consiglio, Simone Paganelli, Tony J. G. Apollaro","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-08-27T16:24:49Z","title":"Detecting quasi-degenerate ground states in topological models via variational quantum eigensolver"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.15179","kind":"arxiv","version":3},"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":"sha256:85bbc5c2f9b2e1cc31eee6a952b042924ac68739be0e90c2ffa06a5c797562d9","target":"record","created_at":"2026-07-05T10:19:10Z","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":"4c378bed533ebc13bff12e5545da18082e0c07eafef4c8bcafc7eb0ca478f880","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-08-27T16:24:49Z","title_canon_sha256":"9a475f3dce89b71ad3b9ceeca2daf91ba4c397243e84c2a53a0e08e4f994b477"},"schema_version":"1.0","source":{"id":"2408.15179","kind":"arxiv","version":3}},"canonical_sha256":"e9e67794427af5e64842564075f488c54a10b9565f5d6356c25af7d52325d80f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9e67794427af5e64842564075f488c54a10b9565f5d6356c25af7d52325d80f","first_computed_at":"2026-07-05T10:19:10.318042Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:19:10.318042Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"djYmpM1mPjGlsBtl+blhXh7I0dnq0IhVBxaJ+sF6Jh+XsJvnw4oZ5yX7BX4qeBWOtWVHdNHR4kDjRiHw+MViBg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:19:10.318562Z","signed_message":"canonical_sha256_bytes"},"source_id":"2408.15179","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:85bbc5c2f9b2e1cc31eee6a952b042924ac68739be0e90c2ffa06a5c797562d9","sha256:4e003a3a3598011ee2f0c1ddc8806735902852cde5913a430963fdb63efe040a"],"state_sha256":"5245e575e3ac329e3dc79333c5a624daa654c3cd3f720899b36aa33a85357f38"}