Jordan-Wigner fermions and the spin-1/2 anisotropic XY model on a square lattice

2001/11/11 by Oleg Derzhko, Johannes Richter, Taras Verkholyak
Physics and Astronomy · #cond-mat

paper · pdf

published as ACTA PHYSICA POLONICA B Vol.32 (2001) 3427 · 5 pages, 2 figures

arxiv created 2001/11/11 · arxiv updated 2009/11/30

Abstract

Using the two-dimensional Jordan-Wigner fermionization we calculate the thermodynamic quantities of the (spatially anisotropic) square-lattice spin-1/2 anisotropic XY (XZ) model. We compare the results of different approaches for the ground-state and thermodynamic properties of the model.

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