Spin dynamics of quantum and classical Heisenberg dimers

D Mentrup, J Schnack and Marshall Luban

Physica A: Statistical Mechanics and its Applications, 1999, vol. 272, issue 1, 153-161

Abstract: Analytical solutions for the time-dependent autocorrelation function of the classical and quantum mechanical spin dimer with arbitrary spin are presented and compared. For large spin quantum numbers or high temperature the classical and the quantum dimer become more and more similar, yet with the major difference that the quantum autocorrelation function is periodic in time whereas the classical is not.

Keywords: Classical statistics; Quantum statistics; Canonical ensemble; Heisenberg model; Spin dimer (search for similar items in EconPapers)
Date: 1999
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:272:y:1999:i:1:p:153-161

DOI: 10.1016/S0378-4371(99)00239-3

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