Non-dissipative thermal transport in the massive regimes of the XXZ chain

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dc.creatorSakai, Kazumitsu
dc.creatorKluemper, Andreas
dc.date2003-07-10
dc.date.accessioned2026-07-07T10:48:09Z
dc.date.available2026-07-07T10:48:09Z
dc.descriptionWe present exact results on the thermal conductivity of the one-dimensional spin-1/2 XXZ model in the massive antiferromagnetic and ferromagnetic regimes. The thermal Drude weight is calculated by a lattice path integral formulation. Numerical results for wide ranges of temperature and anisotropy as well as analytical results in the low and high temperature limits are presented. At finite temperature, the thermal Drude weight is finite and hence there is non-dissipative thermal transport even in the massive regime. At low temperature, the thermal Drude weight behaves as $D(T)\sim \exp(-δ/T)/\sqrt{T}$ where $δ$ is the one-spinon (respectively one-magnon) excitation energy for the antiferromagnetic (respectively ferromagnetic) regime.
dc.description16 pages
dc.identifierhttps://arxiv.org/abs/cond-mat/0307227
dc.identifierhttp://arxiv.org/abs/cond-mat/0307227
dc.identifierJ.Phys.A36:11617-11629,2003
dc.identifierdoi:10.1088/0305-4470/36/46/006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183775
dc.subjectStatistical Mechanics
dc.subjectHigh Energy Physics - Theory
dc.subjectMathematical Physics
dc.subjectExactly Solvable and Integrable Systems
dc.titleNon-dissipative thermal transport in the massive regimes of the XXZ chain
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