Why scalar products in the algebraic Bethe ansatz have determinant representation

S Belliard, NA Slavnov - Journal of High Energy Physics, 2019 - Springer
A bstract We show that the scalar products of on-shell and off-shell Bethe vectors in the
algebralic Bethe ansatz solvable models satisfy a system of linear equations. We find …

[HTML][HTML] Diagonalization of the Heun-Askey-Wilson operator, Leonard pairs and the algebraic Bethe ansatz

P Baseilhac, RA Pimenta - Nuclear Physics B, 2019 - Elsevier
Abstract An operator of Heun-Askey-Wilson type is diagonalized within the framework of the
algebraic Bethe ansatz using the theory of Leonard pairs. For different specializations and …

Complete spectrum of quantum integrable lattice models associated to Y (gl (n)) by separation of variables

JM Maillet, G Niccoli - SciPost Physics, 2019 - scipost.org
We apply our new approach of quantum Separation of Variables (SoV) to the complete
characterization of the transfer matrix spectrum of quantum integrable lattice models …

The open XXX spin chain in the SoV framework: scalar product of separate states

N Kitanine, JM Maillet, G Niccoli… - Journal of Physics A …, 2017 - iopscience.iop.org
We consider the XXX open spin-1/2 chain with the most general non-diagonal boundary
terms, that we solve by means of the quantum separation of variables (SoV) approach. We …

Algebraic Bethe Ansatz for the open XXZ spin chain with non-diagonal boundary terms via Uq sl2 symmetry

D Chernyak, AM Gainutdinov, JL Jacobsen… - … and Geometry: Methods …, 2023 - emis.de
We derive by the traditional algebraic Bethe ansatz method the Bethe equations for the
general open XXZ spin chain with non-diagonal boundary terms under the Nepomechie …

Heun operator of Lie type and the modified algebraic Bethe ansatz

PA Bernard, N Crampe… - Journal of Mathematical …, 2021 - pubs.aip.org
The generic Heun operator of Lie type is identified as a certain BC-Gaudin magnet
Hamiltonian in a magnetic field. By using the modified algebraic Bethe ansatz introduced to …

Correlation functions by separation of variables: the XXX spin chain

G Niccoli, H Pei, V Terras - SciPost Physics, 2021 - scipost.org
We explain how to compute correlation functions at zero temperature within the framework of
the quantum version of the Separation of Variables (SoV) in the case of a simple model: the …

Slavnov and Gaudin-Korepin formulas for models without U (1) symmetry: the twisted XXX chain

S Belliard, RA Pimenta - SIGMA. Symmetry, Integrability and Geometry …, 2015 - emis.de
We consider the XXX spin-$\frac {1}{2} $ Heisenberg chain on the circle with an arbitrary
twist. We characterize its spectral problem using the modified algebraic Bethe anstaz and …

On separation of variables for reflection algebras

JM Maillet, G Niccoli - Journal of Statistical Mechanics: Theory …, 2019 - iopscience.iop.org
We implement our new separation of variables (SoV) approach for open quantum integrable
models associated to higher rank representations of the reflection algebras. We construct …

Algebraic Bethe ansatz for the XXZ Gaudin models with generic boundary

N Crampe - SIGMA. Symmetry, Integrability and Geometry: Methods …, 2017 - emis.de
We solve the XXZ Gaudin model with generic boundary using the modified algebraic Bethe
ansatz. The diagonal and triangular cases have been recovered in this general framework …