paper

On the entanglement entropy for a XY spin chain

arXiv:cond-mat/0410416 · doi:10.1088/1742-5468/2004/12/P12005

Abstract

The entanglement entropy for the ground state of a XY spin chain is related to the corner transfer matrices of the triangular Ising model and expressed in closed form.

4 pages, 2 figures

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