New symmetries of $\mathfrak{gl}(N)$-invariant Bethe vectors
Mathematical Physics
2019-05-22 v2 math.MP
Abstract
We consider quantum integrable models solvable by the nested algebraic Bethe ansatz and possessing -invariant -matrix. We study two types of Bethe vectors. The first type corresponds to the original monodromy matrix. The second type is associated to a monodromy matrix closely related to the inverse of the monodromy matrix. We show that these two types of the Bethe vectors are identical up to normalization and reshuffling of the Bethe parameters. To prove this correspondence we use the current approach. This identity gives new combinatorial relations for the scalar products of the Bethe vectors.
Keywords
Cite
@article{arxiv.1810.00364,
title = {New symmetries of $\mathfrak{gl}(N)$-invariant Bethe vectors},
author = {A. Liashyk and S. Z. Pakuliak and E. Ragoucy and N. A. Slavnov},
journal= {arXiv preprint arXiv:1810.00364},
year = {2019}
}