{"paper":{"title":"Frustrated S=1/2 Two-Leg Ladder with Different Leg Interactions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Kiyomi Okamoto, Takashi Tonegawa, T\\^oru Sakai, Toshiya Hikihara","submitted_at":"2016-08-06T04:15:06Z","abstract_excerpt":"We explore the ground-state phase diagram of the $S\\!=\\!1/2$ two-leg ladder with different isotropic leg interactions and uniform anisotropic rung ones, which is described by the Hamiltonian ${\\cal H}=J_{{\\rm l},a} \\sum\\nolimits_{j=1}^{L}{\\vec S}_{j,a}\\cdot {\\vec S}_{j+1,a}+J_{{\\rm l},b} \\sum\\nolimits_{j=1}^{L} {\\vec S}_{j,b}\\cdot {\\vec S}_{j+1,b}+J_{\\rm r} \\sum\\nolimits_{j=1}^{L} \\bigl\\{S_{j,a}^x S_{j,b}^x + S_{j,a}^y S_{j,b}^y + \\Delta S_{j,a}^z S_{j,b}^z \\bigr\\}$. This system has a frustration when $J_{{\\rm l},a} J_{{\\rm l},b}\\!<\\!0$ irrespective of the sign of $J_{\\rm r}$. The phase diagra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.02064","kind":"arxiv","version":2},"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"}