Eur. Phys. J. B 46, 399-408 (2005)
https://doi.org/10.1140/epjb/e2005-00272-6

Exact thermodynamic limit of short-range correlation functions of the antiferromagnetic XXZ-chain at finite temperatures

Bergische Universität Wuppertal, Fachbereich C – Physik, 42097 Wuppertal, Germany

Corresponding author: ^a mib105@rsphysse.anu.edu.au

Received: 27 April 2005
Published online: 18 August 2005

Abstract

We numerically evaluate certain multiple integrals representing nearest and next-nearest neighbor correlation functions of the spin-1/2 XXZ Heisenberg infinite chain at finite temperatures.