Time- and frequency-dependent correlation functions for the homogeneous and alternating-isotropic XY-models

Explicit expressions are derived for the time correlations between x- and y-components of spin and their frequency-Fourier transforms in the one-dimensional XY-model in the high-temperature limit (β = 0). The results can be expressed as a linear combination of at most three Gaussians multiplied with (quasi) periodic Jacobian theta functions.

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Year of publication:	1980
Authors:	Perk, J.H.H. ; Capel, H.W.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 100.1980, 1, p. 1-23
Publisher:	Elsevier

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10011057429