{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:AVYCQDBM7FB4LJZQGV2T7IGSA5","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":"f8787c47f3aa2089776a779f53c36db47e777f48f269b8c05cd95717bab0b990","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-02-18T14:47:45Z","title_canon_sha256":"be6bbe7c05b5072faca07db60a297a90259c33c3beb7e0d42dd02025e7c6099b"},"schema_version":"1.0","source":{"id":"1402.4359","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.4359","created_at":"2026-05-18T02:45:31Z"},{"alias_kind":"arxiv_version","alias_value":"1402.4359v2","created_at":"2026-05-18T02:45:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.4359","created_at":"2026-05-18T02:45:31Z"},{"alias_kind":"pith_short_12","alias_value":"AVYCQDBM7FB4","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AVYCQDBM7FB4LJZQ","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AVYCQDBM","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:5ca73b1cbf02d918530977b738872bba3f254b1aa06c5245aecafbe025d88555","target":"graph","created_at":"2026-05-18T02:45:31Z","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":"The dynamics in quantum magnets can often be described by effective models with bosonic excitations obeying a hard-core constraint. Such models can be systematically derived by renormalization schemes such as continuous unitary transformations or by variational approaches. Even in the absence of further interactions the hard-core constraint makes the dynamics of the hard-core bosons nontrivial. Here we develop a systematic diagrammatic approach to the spectral properties of hard-core bosons at finite temperature. Starting from an expansion in the density of thermally excited bosons in a system","authors_text":"Benedikt Fauseweh, G\\\"otz S. Uhrig, Joachim Stolze","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-02-18T14:47:45Z","title":"Finite temperature line-shapes of hard-core bosons in quantum magnets: A diagrammatic approach tested in one dimension"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.4359","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:d51e8d644959dde077abfb8d76c2490ecf042d2f6e7c5b2b00eca3742ab78b18","target":"record","created_at":"2026-05-18T02:45:31Z","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":"f8787c47f3aa2089776a779f53c36db47e777f48f269b8c05cd95717bab0b990","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-02-18T14:47:45Z","title_canon_sha256":"be6bbe7c05b5072faca07db60a297a90259c33c3beb7e0d42dd02025e7c6099b"},"schema_version":"1.0","source":{"id":"1402.4359","kind":"arxiv","version":2}},"canonical_sha256":"0570280c2cf943c5a73035753fa0d2077f3ac94c052c488af20a082fdbdf2908","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0570280c2cf943c5a73035753fa0d2077f3ac94c052c488af20a082fdbdf2908","first_computed_at":"2026-05-18T02:45:31.671572Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:45:31.671572Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rxxI9Oscto3a+Nzi4EZwocXKKwGmZ2AV+s03yZjm30uMyrf0GHag2ZLt+GUm2VQVaIVdkR8TrRLAQ2Y5ju2EDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:45:31.672152Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.4359","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d51e8d644959dde077abfb8d76c2490ecf042d2f6e7c5b2b00eca3742ab78b18","sha256:5ca73b1cbf02d918530977b738872bba3f254b1aa06c5245aecafbe025d88555"],"state_sha256":"98d44750524bc5799d438ef9e5d932df32ac78646354d35fa36f9957b1779802"}