Small polaron with generic open boundary conditions revisit: exact solution via the off-diagonal Bethe ansatz
Mathematical Physics
2015-08-31 v2 math.MP
Abstract
The small polaron, an one-dimensional lattice model of interacting spinless fermions, with generic non-diagonal boundary terms is studied by the off-diagonal Bethe ansatz method. The presence of the Grassmann valued non-diagonal boundary fields gives rise to a typical -symmetry-broken fermionic model. The exact spectra of the Hamiltonian and the associated Bethe ansatz equations are derived by constructing an inhomogeneous relation.
Keywords
Cite
@article{arxiv.1504.00207,
title = {Small polaron with generic open boundary conditions revisit: exact solution via the off-diagonal Bethe ansatz},
author = {Xiaotian Xu and Junpeng Cao and Kun Hao and Zhan-Ying Yang and Wen-Li Yang},
journal= {arXiv preprint arXiv:1504.00207},
year = {2015}
}
Comments
12 pages, no figure, published version