New Integrable Generalization of the One-Dimensional t-J Model

TL;DR

This paper introduces a new integrable generalization of the one-dimensional t-J model, solved exactly via Bethe-ansatz, describing fermion dynamics with spin and interaction variations.

Contribution

It presents a novel integrable t-J model with nearest-neighbor hopping, expanding the understanding of exactly solvable fermionic systems.

Findings

Exact solution via Bethe-ansatz in thermodynamic limit

Describes fermion dynamics with isotropic and anisotropic interactions

Generalizes previous t-J models

Abstract

A new generalization of the t-J model with a nearest-neigbour hopping is formulated and solved exactly by the Bethe-ansatz method in the thermodymanic limit. The model describes the dymanics of fermions with different spins and with isotropic and anisotropic interactions.