Finite-size anomalies of the Drude weight: Role of symmetries and ensembles
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DOI: 10.1103/physrevb.96.245117
Abstract: We revisit the numerical problem of computing the high temperature spin stiffness, or Drude weight, $D$ of the spin-$1/2$ $XXZ$ chain using exact diagonalization to systematically analyze its dependence on system symmetries and ensemble. Within… read more here.
Keywords: drude weight; ensuremath; ensuremath delta; mathrm ensuremath ... See more keywords