Exact solution of a two-parameter extended Bariev model

Abstract

An exactly solvable strongly correlated electron model with two independent parameters is constructed in the frame of the quantum inverse scattering method, which can be seen as a generalization of the Bariev model. Through the Bethe ansatz method, a set of Bethe ansatz equations is derived. In the thermodynamic limit, to study the ground state of the model, we obtain the integral equations for the density of Bethe roots. Numerical validation are done to confirm the accuracy of our analytic results.

References in corpus (4)

• Exact Solution of the Asymmetric Exclusion Model with Particles of Arbitrary Size
• Exact solution of the one-dimensional Hubbard model with arbitrary boundary magnetic fields
• Interpolation between Hubbard and supersymmetric t-J models. Two-parameter integrable models of correlated electrons
• New R-matrices with non-additive spectral parameters and integrable models of strongly correlated fermions