Spin chains with boundary inhomogeneities
Abstract
We investigate the effect of introducing a boundary inhomogeneity in the transfer matrix of an integrable open quantum spin chain. We find that it is possible to construct a local Hamiltonian, and to have quantum group symmetry. The boundary inhomogeneity has a profound effect on the Bethe ansatz solution.
 Publication:

Journal of High Energy Physics
 Pub Date:
 August 2021
 DOI:
 10.1007/JHEP08(2021)053
 arXiv:
 arXiv:2105.04982
 Bibcode:
 2021JHEP...08..053N
 Keywords:

 Bethe Ansatz;
 Lattice Integrable Models;
 Quantum Groups;
 High Energy Physics  Theory;
 Condensed Matter  Statistical Mechanics;
 Mathematical Physics
 EPrint:
 15 pages