Free Energy for Layered Free Fermion Models

Kazuyuki Tanaka, Tohru Morita

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The exact expression of the free energy is obtained for the free fermion model on a lattice with a multiple number of sublattices. Compact exact expressions are presented, in particular, for two-sublattice systems. Vdovichenko's method is used in the derivation. Some remarks are given to justify the Vdovichenko's method for the free fermion model.

Original languageEnglish
Pages (from-to)92-101
Number of pages10
JournalJournal of the Physical Society of Japan
Issue number1
Publication statusPublished - 1992 Jan


  • eight-vertex model
  • exact solution
  • free fermion model
  • Ising model
  • Vdovichenko's method


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