{"paper":{"title":"Disorder-Free Localization and Fragmentation in a Non-Abelian Lattice Gauge Theory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-lat","quant-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"Giovanni Cataldi, Giuseppe Calaj\\'o, Jad C. Halimeh, Pietro Silvi, Simone Montangero","submitted_at":"2025-05-07T18:00:42Z","abstract_excerpt":"We investigate how isolated quantum many-body systems equilibrate when quenched far from equilibrium under non-Abelian gauge-symmetry constraints. By encoding gauge superselection sectors into static $\\mathrm{SU}(2)$ background charges, we map out the dynamical phase diagram of a $1+1D$ $\\mathrm{SU}(2)$ lattice gauge theory with dynamical matter. We uncover three distinct regimes: (i) an ergodic phase, (ii) a fragmented phase that is nonthermal but delocalized, and (iii) a disorder-free many-body localized regime. In the latter, a superposition of superselection sectors retains spatial matter "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.04704","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2505.04704/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}