Authors: Stolze, Joachim
Derzhko, Oleg
Krokhmalskii, Taras
Title: Dynamic properties of the dimerized spin-1/2 isotropic XY chain in a transverse field
Language (ISO): en
Abstract: The zz and xx(yy) dynamic structure factors of the dimerized spin-½ isotropic XY chain in a transverse (z) field are calculated for arbitrary temperatures. The zz structure factor can be given in analytical terms, involving a single integration, whereas the xx dynamic structure factor can be evaluated completely numerically for very long chains. We compare the two structure factors and discuss in some detail how a dimerization manifests itself in the dynamic structure factors at different external fields and temperatures. We compare our results to corresponding results for the dimerized Heisenberg chain obtained by approximate techniques.
URI: http://hdl.handle.net/2003/25451
http://dx.doi.org/10.17877/DE290R-2838
Issue Date: 2002-04-26
Rights: Copyright © Institute of Physics
Publisher: IOP Publishing
URL: http://dx.doi.org/10.1088/0305-4470/35/16/301
Citation: Derzhko, Oleg; Krokhmalskii, Taras; Stolze, Joachim: Dynamic properties of the dimerized spin-1/2 isotropic XY chain in a transverse field. In: Journal of Physics A Nr. 16, Jg. 35(2002), S. 3573-3596, doi: 10.1088/0305-4470/35/16/301.
Appears in Collections:Stolze, Joachim Prof. Dr.

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