Critical Index $ν$ of the Vertical-Arrow Correlation Length in the Eight-Vertex Model

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21 August 1972

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 29 (8) , 492-494
https://doi.org/10.1103/physrevlett.29.492

Abstract

We calculate the critical index

ν

of the correlation length between two vertical arrows in the same column for the eight-vertex model and find

ν = 1 - \frac{α}{2}

. We also compute at zero temperature the low-lying excitations of the

X - Y - Z

model.

Keywords

This publication has 11 references indexed in Scilit:

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