Two-spin dynamic autocorrelations and energy diffusion in the Heisenberg paramagnet

M. De Leener and P. Résibois

Physica A: Statistical Mechanics and its Applications, 1977, vol. 87, issue 1, 63-93

Abstract: We establish the kinetic equation for the two-spin time-dependent correlation function in the Weiss limit. Considering this equation in the limit of small wavenumbers, we obtain an explicit expression for the energy diffusion coefficient. We also discuss some difficulties connected with overcounting problems of the Weiss approximation.

Date: 1977
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:87:y:1977:i:1:p:63-93

DOI: 10.1016/0378-4371(77)90168-6

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