Q-operator for the quantum NLS model
High Energy Physics - Theory
2018-12-27 v1 Mathematical Physics
math.MP
Abstract
In this paper we show that the operator introduced by A. A. Tsvetkov enjoys all the needed properties of a Q-operator. It is shown that the Q-operator of the XXX spin chain with generic values of spin turns into Tsvetkov's operator in the continuum limit for large spin.
Cite
@article{arxiv.1812.10043,
title = {Q-operator for the quantum NLS model},
author = {N. Belousov and S. Derkachov},
journal= {arXiv preprint arXiv:1812.10043},
year = {2018}
}