{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:HDUATAHOX7AXNLVIQSEYQWLT7U","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":"6ceef3e7cc6351c53cb5e7de15f289539ff53f17241cb4560c6cb428526c6d82","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-07-22T10:57:23Z","title_canon_sha256":"c2d13d242707c114ba0caef0d8249d4d4934ce39aa7ae786ae877bfb6e1086ac"},"schema_version":"1.0","source":{"id":"1107.4479","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.4479","created_at":"2026-05-18T02:01:11Z"},{"alias_kind":"arxiv_version","alias_value":"1107.4479v1","created_at":"2026-05-18T02:01:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.4479","created_at":"2026-05-18T02:01:11Z"},{"alias_kind":"pith_short_12","alias_value":"HDUATAHOX7AX","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"HDUATAHOX7AXNLVI","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"HDUATAHO","created_at":"2026-05-18T12:26:30Z"}],"graph_snapshots":[{"event_id":"sha256:a3ea53f95fef15504ee277c5a9ee728d4e614d91d7983f6752f010433db1eaa0","target":"graph","created_at":"2026-05-18T02:01:11Z","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":"A polemic arose recently about the applicability of the $t$-expansion method to the calculation of the ground state energy $E_0$ of the Rabi model. For specific choices of the trial function and very large number of involved connected moments, the $t$-expansion results are rather poor and exhibit considerable oscillations. In this letter, we formulate the $t$-expansion method for trial functions containing two free parameters which capture two exactly solvable limits of the Rabi Hamiltonian. At each order of the $t$-series, $E_0$ is assumed to be stationary with respect to the free parameters.","authors_text":"Igor Travenec, Ladislav Samaj","cross_cats":["cond-mat.other"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-07-22T10:57:23Z","title":"Optimized t-expansion method for the Rabi Hamiltonian"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.4479","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":"sha256:73a75978c67473e1ad1e789f7fd65538ce111c902061a319ef33b74add8ffb0e","target":"record","created_at":"2026-05-18T02:01:11Z","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":"6ceef3e7cc6351c53cb5e7de15f289539ff53f17241cb4560c6cb428526c6d82","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-07-22T10:57:23Z","title_canon_sha256":"c2d13d242707c114ba0caef0d8249d4d4934ce39aa7ae786ae877bfb6e1086ac"},"schema_version":"1.0","source":{"id":"1107.4479","kind":"arxiv","version":1}},"canonical_sha256":"38e80980eebfc176aea88489885973fd2c9c8f803f3c566937e2dc741ce442ed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"38e80980eebfc176aea88489885973fd2c9c8f803f3c566937e2dc741ce442ed","first_computed_at":"2026-05-18T02:01:11.464647Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:11.464647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TRkHVpJPTxLxJjADrhGtsls7EcO7s5ao+iG9hxhDWViksLabGQ1hV/rghHvlcSto8Q7QM6Zqy1gn9RTgjl0RBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:11.465361Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.4479","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:73a75978c67473e1ad1e789f7fd65538ce111c902061a319ef33b74add8ffb0e","sha256:a3ea53f95fef15504ee277c5a9ee728d4e614d91d7983f6752f010433db1eaa0"],"state_sha256":"439c09dc746dee75193c0b8e0eb4ce15b96b6ef259efef0b509c2cb28367c588"}