Thermodynamics of the Anisotropic Heisenberg Chain Calculated by the Density Matrix Renormalization Group Method

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149 Citations (Scopus)

Abstract

The density matrix renormalization group (DMRG) method is applied to the anisotropic Heisenberg chain at finite temperatures. The free energy of the system is obtained using the quantum transfer matrix which is iteratively enlarged in the imaginary time direction. The magnetic susceptibility and the specific heat are calculated down to T = 0.01J and compared with the Bethe ansatz results. The agreement including the logarithmic correction in the magnetic susceptibility at the isotropic point is fairly good.

Original languageEnglish
Pages (from-to)2221-2223
Number of pages3
Journaljournal of the physical society of japan
Volume66
Issue number8
DOIs
Publication statusPublished - 1997
Externally publishedYes

Keywords

  • Heisenberg model
  • anisotropy
  • density matrix
  • magnetic susceptibility
  • renormalization group
  • specific heat

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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