Abstract
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 language | English |
|---|---|
| Pages (from-to) | 92-101 |
| Number of pages | 10 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 61 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1992 Jan |
Keywords
- eight-vertex model
- exact solution
- free fermion model
- Ising model
- Vdovichenko's method