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arXiv:1304.5512 · Journal of Statistical Mechanics Theory and Experiment

Correlation functions of the integrable isotropic spin-1 chain: algebraic expressions for arbitrary temperature

Andreas Klümper, Dominic Nawrath, Junji Suzuki

Published Aug 27, 2013• 17 citations
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Abstract

We derive algebraic formulae for the density matrices of finite segments of the integrable s u (2) isotropic spin-1 chain in the thermodynamic limit. We give explicit results for the 2- and 3-site cases for arbitrary temperature T and zero field. In the zero-temperature limit the correlation functions are given in elementary form in terms of Riemann's zeta function at even integer arguments.

DOI
10.1088/1742-5468/2013/08/p08009

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