corner
corner
APS » Journals » Phys. Rev. Lett. » Volume 82 » Issue 26
< Previous Article | Next Article >

Phys. Rev. Lett. 82, 5365–5368 (1999)

Temperature-Dependent Spatial Oscillations in the Correlations of the XXZ Spin Chain

Download: PDF (56 kB) Buy this article Export: BibTeX or EndNote (RIS)

Klaus Fabricius*
Physics Department, University of Wuppertal, 42097 Wuppertal, Germany

Andreas Klümper†
Institut für Theoretische Physik, Universität zu Köln, Zülpicher Strasse 77, 50937 Köln 41, Germany

Barry M. McCoy‡
Institute for Theoretical Physics, State University of New York, Stony Brook, New York 11794-3840

Received 3 December 1998; published in the issue dated 28 June 1999

We study the correlation 〈σ0zσnz〉 for the XXZ chain in the massless attractive (ferromagnetic) region at positive temperatures by means of a numerical study of the quantum transfer matrix. We find that there is a range of temperature where the behavior of the correlation for large separations is oscillatory with an incommensurate period which depends on temperature.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.82.5365
DOI:
10.1103/PhysRevLett.82.5365
PACS:
75.10.Jm, 75.40.Gb

*Email address: Klaus.Fabricius@theorie.physik.uni-wuppertal.de

†Email address: kluemper@thp.Uni-Koeln.DE

‡Email address: mccoy@insti.physics.sunysb.edu

 
< Previous Article | Next Article >