Algebraic Bethe ansatz method for the exact calculation of energy spectra and form factors: applications to models of Bose–Einstein condensates and metallic …

J Links, HQ Zhou, RH McKenzie… - Journal of Physics A …, 2003 - iopscience.iop.org
In this review we demonstrate how the algebraic Bethe ansatz is used for the calculation of
the energy spectra and form factors (operator matrix elements in the basis of Hamiltonian …

Exactly solvable models for atom-molecule Hamiltonians

J Dukelsky, GG Dussel, C Esebbag, S Pittel - Physical review letters, 2004 - APS
We present a family of exactly solvable generalizations of the Jaynes-Cummings model
involving the interaction of an ensemble of SU (2) or SU (1, 1) quasispins with a single …

Exact solution, scaling behaviour and quantum dynamics of a model of an atom-molecule Bose–Einstein condensate

HQ Zhou, J Links, RH McKenzie - International Journal of Modern …, 2003 - World Scientific
We study the exact solution for a two-mode model describing coherent coupling between
atomic and molecular Bose–Einstein condensates (BEC), in the context of the Bethe ansatz …

A large class of solvable multistate Landau–Zener models and quantum integrability

VY Chernyak, NA Sinitsyn, C Sun - Journal of Physics A …, 2018 - iopscience.iop.org
The concept of quantum integrability has been introduced recently for quantum systems with
explicitly time-dependent Hamiltonians (Sinitsyn et al 2018 Phys. Rev. Lett. 120 190402) …

Separation of variables for integrable spin–boson models

L Amico, H Frahm, A Osterloh, T Wirth - Nuclear Physics B, 2010 - Elsevier
We formulate the functional Bethe ansatz for bosonic (infinite dimensional) representations
of the Yang–Baxter algebra. The main deviation from the standard approach consists in a …

Algebraic approach to the Tavis-Cummings problem

IP Vadeiko, GP Miroshnichenko, AV Rybin, J Timonen - Physical Review A, 2003 - APS
An algebraic method is introduced for an analytical solution of the eigenvalue problem of the
Tavis-Cummings Hamiltonian, based on polynomially deformed su (2), ie, su n (2) algebras …

Exact analysis of the spectral properties of the anisotropic two-bosons Rabi model

S Cui, JP Cao, H Fan, L Amico - Journal of Physics A …, 2017 - iopscience.iop.org
We introduce the anisotropic two-photon Rabi model in which the rotating and counter
rotating terms enters the Hamiltonian with two different coupling constants. Eigenvalues and …

Integrable spin–boson models descending from rational six-vertex models

L Amico, H Frahm, A Osterloh, GAP Ribeiro - Nuclear Physics B, 2007 - Elsevier
We construct commuting transfer matrices for models describing the interaction between a
single quantum spin and a single bosonic mode using the quantum inverse scattering …

Exact solutions for a family of spin-boson systems

YH Lee, J Links, YZ Zhang - Nonlinearity, 2011 - iopscience.iop.org
We obtain the exact solutions for a family of spin-boson systems. This is achieved through
application of the representation theory for polynomial deformations of the su (2) Lie …

Thermal entanglement and efficiency of the quantum Otto cycle for the su (1, 1) Tavis–Cummings system

L Chotorlishvili, Z Toklikishvili… - Journal of Physics A …, 2011 - iopscience.iop.org
The influence of the dynamical Stark shift on the thermal entanglement and the efficiency of
the quantum Otto cycle is studied for the su (1, 1) Tavis–Cummings system. It is shown that …