Level statistics in a Heisenberg chain with random magnetic field

Y. Avishai, Y. Avishai, J. Richert, R. Berkovits

Research output: Contribution to journalArticlepeer-review

71 Scopus citations

Abstract

Level statistics is calculated for a Heisenberg spin chain with a random magnetic field, and shown to follow that of random-matrix theory pertaining to Gaussian orthogonal ensemble, due to nonconventional time-reversal invariance. However, when a bona fide time reversal violation term is added, such as three spin interaction, the statistics follows that pertaining to Gaussian unitary ensemble.

Original languageEnglish
Article number052416
Pages (from-to)524161-524164
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number5
DOIs
StatePublished - 1 Aug 2002

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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