The Q-Operator for the Quantum NLS Model

Autor: S. E. Derkachov, N. M. Belousov
Rok vydání: 2019
Předmět:
Zdroj: Journal of Mathematical Sciences. 242:608-627
ISSN: 1573-8795
1072-3374
DOI: 10.1007/s10958-019-04500-w
Popis: In this paper, we show that an operator introduced by A. A. Tsvetkov enjoys all the necessary properties of a Q-operator. It is shown that the Q-operator of the XXX spin chain with spin l turns into Tsvetkov’s operator in the continuous limit as l→∞. Bibliography: 18 titles.
Databáze: OpenAIRE