# Density matrices in integrable face models

@article{Frahm2021DensityMI, title={Density matrices in integrable face models}, author={Holger Frahm and Daniel Westerfeld}, journal={SciPost Physics}, year={2021} }

Using the properties of the local Boltzmann weights of integrable
interaction-round-a-face (IRF or face) models we express local operators
in terms of generalized transfer matrices. This allows for the
derivation of discrete functional equations for the reduced density
matrices in inhomogeneous generalizations of these models. We apply
these equations to study the density matrices for IRF models of various
solid-on-solid type and quantum chains of non-Abelian
\mathbold{su(2)_3}𝐬𝐮(2)3
or… Expand

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