Integral formulae of the canonical correlation functions for the one dimensional transverse Ising model

Makoto Inoue

Physica A: Statistical Mechanics and its Applications, 2017, vol. 488, issue C, 46-55

Abstract: Some new formulae of the canonical correlation functions for the one dimensional quantum transverse Ising model are found by the ST-transformation method using a Morita’s sum rule and its extensions for the two dimensional classical Ising model. As a consequence we obtain a time-independent term of the dynamical correlation functions. Differences of quantum version and classical version of these formulae are also discussed.

Keywords: Quantum Spin models; Suzuki–Trotter transformation; Two-dimensional Ising model; One-dimensional Transverse Ising model; Canonical correlation function; Sum rule (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:488:y:2017:i:c:p:46-55

DOI: 10.1016/j.physa.2017.06.027

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