Spin-1/2 > XYZ model revisit: General solutions via off-diagonal Bethe ansatz
Abstract
The spin-1/2 > XYZ model with both periodic and anti-periodic boundary conditions is studied via the off-diagonal Bethe ansatz method. The exact spectra of the Hamiltonians and the Bethe ansatz equations are derived by constructing the inhomogeneous T-Q relations, which allow us to treat both the even N (the number of lattice sites) and odd N cases simultaneously in a unified approach.
- Publication:
-
Nuclear Physics B
- Pub Date:
- September 2014
- DOI:
- 10.1016/j.nuclphysb.2014.06.026
- arXiv:
- arXiv:1307.0280
- Bibcode:
- 2014NuPhB.886..185C
- Keywords:
-
- Condensed Matter - Statistical Mechanics;
- High Energy Physics - Theory;
- Mathematical Physics
- E-Print:
- 20 pages, 3 tables, published version, numerical check is added