{"paper":{"title":"Dynamic correlations of antiferromagnetic spin-1/2 XXZ chains at arbitrary temperature from complete diagonalization","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"Joachim Stolze, Klaus Fabricius, Ute L\\\"ow","submitted_at":"1996-11-11T09:51:01Z","abstract_excerpt":"All eigenstates and eigenvalues are determined for the spin- 1/2 $XXZ$ chain $H = 2J \\sum_i ( S_{i}^{x} S_{i + 1}^{x} + S_{i}^{y} S_{i + 1}^{y} + \\Delta S_i^z S_{i + 1}^{z})$ for rings with up to N=16 spins, for anisotropies $\\Delta=0 , \\cos(0.3\\pi)$, and 1. The dynamic spin pair correlations $< S_{l+n}^{\\mu}(t) S_l^{\\mu} > , (\\mu=x,z)$, the dynamic structure factors $S^{\\mu}(q,\\omega)$, and the intermediate structure factors $I^{\\mu}(q,t)$ are calculated for arbitrary temperature T. It is found, that for all T, $S^{z}(q,\\omega)$ is mainly concentrated on the region $|\\omega| < \\varepsilon_2(q"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9611077","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}