Email this article The Q-Operator for the Quantum NLS Model
- Authors: Belousov N.M.1, Derkachov S.E.1
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Affiliations:
- St. Petersburg Department of Steklov Institute of Mathematics
- Issue: Vol 242, No 5 (2019)
- Pages: 608-627
- Section: Article
- URL: https://journal-vniispk.ru/1072-3374/article/view/243008
- DOI: https://doi.org/10.1007/s10958-019-04500-w
- ID: 243008
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Abstract
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.
About the authors
N. M. Belousov
St. Petersburg Department of Steklov Institute of Mathematics
Author for correspondence.
Email: belousovnikita.m@gmail.com
Russian Federation, St. Petersburg
S. E. Derkachov
St. Petersburg Department of Steklov Institute of Mathematics
Email: belousovnikita.m@gmail.com
Russian Federation, St. Petersburg
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