{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:FYMYUUZPGDDDMEI3LETSPILTGK","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":"c07fa89a01f817bcc4f0dc18d50f9c68f0c506f442141c536fc5129b62ef3341","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-01-07T13:32:59Z","title_canon_sha256":"62b5d37915ef693bd82e50acfabaa3adbadbf44ecd928c68bf7412e17c6316c4"},"schema_version":"1.0","source":{"id":"cond-mat/9801046","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9801046","created_at":"2026-05-18T01:07:07Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9801046v2","created_at":"2026-05-18T01:07:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9801046","created_at":"2026-05-18T01:07:07Z"},{"alias_kind":"pith_short_12","alias_value":"FYMYUUZPGDDD","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"FYMYUUZPGDDDMEI3","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"FYMYUUZP","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:9d51fd9744c4c4e1246fe4c92359f69e7c9716579216bf3c4e19c707e232c793","target":"graph","created_at":"2026-05-18T01:07:07Z","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"},"paper":{"abstract_excerpt":"We present a detailed numerical analysis of the low energy excitation spectrum of a frustrated and dimerized spin $S=1/2$ Heisenberg chain. In particular, we show that in the commensurate spin--Peierls phase the ratio of the singlet and triplet excitation gap is a universal function which depends on the frustration parameter only. We identify the conditions for which a second elementary triplet branch in the excitation spectrum splits from the continuum. We compare our results with predictions from the continuum limit field theory . We discuss the relevance of our data in connection with recen","authors_text":"A.P. Kampf, G. Bouzerar, G.I. Japaridze","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-01-07T13:32:59Z","title":"Elementary Excitations in Dimerized and Frustrated Heisenberg Chains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9801046","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:cd9bdce4d882f721e02baa4a611e78768f2cd73a665de11295fedcbfb0c656e8","target":"record","created_at":"2026-05-18T01:07:07Z","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":"c07fa89a01f817bcc4f0dc18d50f9c68f0c506f442141c536fc5129b62ef3341","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-01-07T13:32:59Z","title_canon_sha256":"62b5d37915ef693bd82e50acfabaa3adbadbf44ecd928c68bf7412e17c6316c4"},"schema_version":"1.0","source":{"id":"cond-mat/9801046","kind":"arxiv","version":2}},"canonical_sha256":"2e198a532f30c636111b592727a1733297d12b5edd74b1c424b31495e7de96bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2e198a532f30c636111b592727a1733297d12b5edd74b1c424b31495e7de96bc","first_computed_at":"2026-05-18T01:07:07.553325Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:07.553325Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Aq83XEk5kc/CDAgXk2/4mdMIduVsZPfjqEQp0klhAvurXPZiuqG25wL46MXC+4hf+tsOc02Hkv8awxnjJRrrAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:07.553741Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9801046","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cd9bdce4d882f721e02baa4a611e78768f2cd73a665de11295fedcbfb0c656e8","sha256:9d51fd9744c4c4e1246fe4c92359f69e7c9716579216bf3c4e19c707e232c793"],"state_sha256":"99a452a1d074043d4626fcaeaad22bbc3a16ad9e9fd4e4f7a8028efd7f5796e2"}