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This article is cited in 6 scientific papers (total in 6 papers)
“Twisted” rational $r$-matrices and the algebraic Bethe ansatz:
Applications to generalized Gaudin models, Bose–Hubbard dimers, and
Jaynes–Cummings–Dicke-type models
T. V. Skrypnykab a Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine
b University of Milano-Bicocca, Milano, Italy
Abstract:
We construct quantum integrable systems associated with the Lie algebra $gl(n)$ and non-skew-symmetric "shifted and twisted" rational $r$-matrices. The obtained models include Gaudin-type models with and without an external magnetic field, $n$-level $(n-1)$-mode Jaynes–Cummings–Dicke-type models in the $\Lambda$-configuration, a vector generalization of Bose–Hubbard dimers, etc. We diagonalize quantum Hamiltonians of the constructed integrable models using a nested Bethe ansatz.
Keywords:
integrable system, classical $r$-matrix, algebraic Bethe ansatz.
Citation:
T. V. Skrypnyk, ““Twisted” rational $r$-matrices and the algebraic Bethe ansatz:
Applications to generalized Gaudin models, Bose–Hubbard dimers, and
Jaynes–Cummings–Dicke-type models”, TMF, 189:1 (2016), 125–146; Theoret. and Math. Phys., 189:1 (2016), 1509–1527
Linking options:
https://www.mathnet.ru/eng/tmf9078https://doi.org/10.4213/tmf9078 https://www.mathnet.ru/eng/tmf/v189/i1/p125
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