A new tow-parameter integrable model of strongly correlated electrons with quantum superalgebra symmetry

TL;DR

This paper introduces a novel two-parameter integrable model of strongly correlated electrons exhibiting quantum superalgebra symmetry, solved via Bethe ansatz, expanding understanding of correlated electron systems.

Contribution

It presents a new integrable electron model with quantum superalgebra symmetry and derives its exact solution using Bethe ansatz methods.

Findings

Model exhibits quantum superalgebra $U_q[gl(3|1)]$ symmetry

Exact Bethe ansatz equations are obtained

Model includes correlated and uncorrelated hopping terms

Abstract

A new two-parameter integrable model with quantum superalgebra $U_q[gl(3|1)]$ symmetry is proposed, which is an eight-state electron model with correlated single-particle and pair hoppings as well as uncorrelated triple-particle hopping. The model is solved and the Bethe ansatz equations are obtained.