arXiv:cond-mat/0412062 Abstract

arXiv:cond-mat/0412062Abstract References Reviews Resources

Integral representation of the density matrix of the XXZ chain at finite temperatures

Frank Göhmann, Andreas Klümper, Alexander Seel

Published 2004-12-02Version 1

We present an integral formula for the density matrix of a finite segment of the infinitely long spin-1/2 XXZ chain. This formula is valid for any temperature and any longitudinal magnetic field.

Comments: 12 pages, Latex

Journal: J.Phys. A38 (2005) 1833-1842

DOI: 10.1088/0305-4470/38/9/001

Categories: cond-mat.stat-mech, hep-th

Subjects: 75.10.Pq, 05.30.-d

Keywords: xxz chain, density matrix, finite temperatures, integral representation, longitudinal magnetic field

Tags: journal article

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