{"paper":{"title":"Non-Fermi liquid regime of a doped Mott insulator","license":"","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"Antoine Georges, Olivier Parcollet","submitted_at":"1998-06-09T15:38:33Z","abstract_excerpt":"We study the doping of a Mott insulator in the presence of quenched frustrating disorder in the magnetic exchange. A low doping regime $\\delta<J/t$ is found, in which the quasiparticle coherent scale is low : $\\epsilon_F^* = J (\\delta/\\delta^*)^2$ with $\\delta^*=J/t$ (the ratio of typical exchange to hopping). In the ``quantum critical regime'' $\\epsilon_F^*<T<J$, several physical quantities display Marginal Fermi Liquid behaviour : NMR relaxation time $1/T_1\\sim const.$, resistivity $\\rho_{dc}(T) \\propto T$, optical lifetime $\\tau_{opt}^{-1}\\propto \\omega/\\ln(\\omega/\\epstar)$ and response fun"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9806119","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"}