Abstract:
We consider an $XYZ$ spin chain within the framework of the generalized algebraic Bethe ansatz. We calculate the actions of monodromy matrix elements on Bethe vectors as linear combinations of new Bethe vectors. We also compute the multiple action of the gauge-transformed monodromy matrix elements on the pre-Bethe vector and express the results in terms of the partition function of the $8$-vertex model.
The work of G. Kulkarni was supported by the SIMC postdoctoral grant of the Steklov Mathematical Institute. The
work of N. A. Slavnov was performed at the Steklov International
Mathematical Center and supported by the Ministry of Science and
Higher Education of the Russian Federation (agreement
No. 075-15-2022-265).
Citation:
G. Kulkarni, N. A. Slavnov, “Action of the monodromy matrix elements in the generalized algebraic Bethe ansatz”, TMF, 217:3 (2023), 555–576; Theoret. and Math. Phys., 217:3 (2023), 1889–1906