14 citations · 15 across the 2 of their papers we have counts for
2 papers
math-ph2024★ 1 cited
Scaling limit of the ground state Bethe roots for the inhomogeneous XXZ spin- chain
Sascha Gehrmann, Gleb A. Kotousov, Sergei L. Lukyanov
It is known that for the Heisenberg XXZ spin- chain in the critical regime, the scaling limit of the vacuum Bethe roots yields an infinite set of numbers that coincide…
hep-th2014★ 14 cited
Winding vacuum energies in a deformed O(4) sigma model
Vladimir V. Bazhanov, Gleb A. Kotousov, Sergei L. Lukyanov
We consider the problem of calculating the Casimir energies in the winding sectors of Fateev's SS-model, which is an integrable two-parameter deformation of the O(4) non-linear sig…