Overlap between usual and modified Bethe vectors
Mathematical Physics
2021-11-03 v2 math.MP
Abstract
We consider the overlap of Bethe vectors of the XXX spin chain with a diagonal twist and the modified Bethe vectors with a general twist. We find a determinant representation for this overlap under one additional condition on the twist parameters. Such objects arise in the calculations of nonequilibrium physics.
Keywords
Cite
@article{arxiv.2106.00244,
title = {Overlap between usual and modified Bethe vectors},
author = {S. Belliard and N. A. Slavnov},
journal= {arXiv preprint arXiv:2106.00244},
year = {2021}
}
Comments
19 pages, no figures