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Density Matrix Renormalization Group Study of the Haldane Phase in Random One-Dimensional Antiferromagnets

Authors
  • Hida, Kazuo
Type
Published Article
Publication Date
Oct 14, 1999
Submission Date
Mar 01, 1999
Identifiers
DOI: 10.1103/PhysRevLett.83.3297
arXiv ID: cond-mat/9903014
Source
arXiv
License
Unknown
External links

Abstract

It is conjectured that the Haldane phase of the S=1 antiferromagnetic Heisenberg chain and the $S=1/2$ ferromagnetic-antiferromagnetic alternating Heisenberg chain is stable against any strength of randomness, because of imposed breakdown of translational symmetry. This conjecture is confirmed by the density matrix renormalization group calculation of the string order parameter and the energy gap distribution.

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