Gas of anyons on a lattice in the low-density limit
Belov A. A., Zhitomirskaya S. Ya., Lozovik Yu. E., Mandel'shtam V. A.
A Green's-function method is used to derive an exact expression for the second virial coefficient of a lattice gas of particles with fractional statistics. Such a gas arises in certain models of high-Tc superconductors.