On the entanglement entropy for an XY spin chain

Published 16 December 2004 IOP Publishing Ltd
, , Citation Ingo Peschel J. Stat. Mech. (2004) P12005 DOI 10.1088/1742-5468/2004/12/P12005

1742-5468/2004/12/P12005

Abstract

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

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