On the Yang-Baxter Poisson algebra in non-ultralocal integrable systems

Autor: Bazhanov, Vladimir V., Kotousov, Gleb A., Lukyanov, Sergei L.
Rok vydání: 2018
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1016/j.nuclphysb.2018.07.016
Popis: A common approach to the quantization of integrable models starts with the formal substitution of the Yang-Baxter Poisson algebra with its quantum version. However it is difficult to discern the presence of such an algebra for the so-called non-ultralocal models. The latter includes the class of non-linear sigma models which are most interesting from the point of view of applications. In this work, we investigate the emergence of the Yang-Baxter Poisson algebra in a non-ultralocal system which is related to integrable deformations of the Principal Chiral Field.
Comment: 29 pages, 2 figures. v3: stylistic improvements - formulae simplified, Appendix A integrated into the main text
Databáze: arXiv