Universal diffusive decay of correlations in gapped one-dimensional systems

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dc.creatorRapp, Akos
dc.creatorZarand, Gergely
dc.date2008-06-25
dc.date2009-01-26
dc.date.accessioned2026-07-07T12:34:03Z
dc.date.available2026-07-07T12:34:03Z
dc.descriptionWe apply a semiclassical approach to express finite temperature dynamical correlation functions of gapped spin models analytically. We show that the approach of [A. Rapp, G. Zarand, Phys. Rev. B 74, 014433 (2006)] can also be used for the S=1 antiferromagnetic Heisenberg chain, whose lineshape can be measured experimentally. We generalize our calculations to O(N) quantum spin models and the sine-Gordon model in one dimension, and show that in all these models, the finite temperature decay of certain correlation functions is characterized by the same universal semiclassical relaxation function.
dc.description7 pages, 5 figures, final version appeared in Eur. Phys. J. B 67, 7-13 (2009)
dc.identifierhttps://arxiv.org/abs/0806.4107
dc.identifierhttp://arxiv.org/abs/0806.4107
dc.identifierEur. Phys. J. B 67, 7-13 (2009)
dc.identifierdoi:10.1140/epjb/e2008-00465-5
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217285
dc.subjectStatistical Mechanics
dc.titleUniversal diffusive decay of correlations in gapped one-dimensional systems
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