Bethe ansatz for rotated boundary conditions

А. А. Литвин, V. B. Priezzhev

E. Berkcan, Leon N. Cooper, Udayan Mohanty

Guang-Liang Li, Rui‐Hong Yue, Bo-Yu Hou

Xiangyu Ge, M. D. Gould

Nine classes of integrable open boundary conditions, further extending the one-dimensional U q ( gl (2|2)) extended Hubbard model, have been constructed previously by means of the boundary Z 2 -graded quantum inverse scattering method. The boundary systems are now solved by using the algebraic Bethe ansatz method, and the Bethe ansatz equations are obtained for all nine cases.

Kiyoshi Sogo

Shu Chen, Yupeng Wang, Fan Yang +1 more

We investigate a 1D fermion model with boundary impurity. When the boundary impurity coupling coefficients fullfil some special relations, this model is integrable. The integrable condition can be determined by the self-consistent condition. Furthermore, the eigenvalue and the Bethe ansatz equation are also obtained by using the coordinate Bethe ansatz method, thus the ground state properties is discussed in some special case.