A NEW INTEGRABLE MODEL OF STRONGLY CORRELATED ELECTRONS WITH HUBBARD-LIKE INTERACTION

2001 ◽  
Vol 15 (06n07) ◽  
pp. 213-218
Author(s):  
XIANG-YU GE

A new completely integrable model of strongly correlated electrons is proposed which describes two competitive interactions: one is the correlated one-particle hopping, the other is the Hubbard-like interaction. The integrability follows from the fact that the Hamiltonian is derivable from a one-parameter family of commuting transfer matrices. The Bethe ansatz equations are derived by algebraic Bethe ansatz method.

1994 ◽  
Vol 08 (23) ◽  
pp. 3205-3242 ◽  
Author(s):  
FABIAN H.L. EßLER ◽  
VLADIMIR E. KOREPIN ◽  
KARELJAN SCHOUTENS

We study the exact solution of a superconducting model of strongly correlated electrons in 1+1 dimensions. We explain the method of solution and explicitly derive the fundamental Bethe equations that determine the physical properties of the model in the thermodynamic limit. We also give explicit expressions for the conserved quantum integrals of motion in the model and prove a lowest weight theorem for the Bethe Ansatz states.


2021 ◽  
Author(s):  
James O. Thomas ◽  
Jakub K. Sowa ◽  
Bart Limburg ◽  
Xinya Bian ◽  
Charalambos Evangeli ◽  
...  

Experimental studies of electron transport through an edge-fused porphyrin oligomer in a graphene junction are interpreted within a Hubbard dimer framework.


Sign in / Sign up

Export Citation Format

Share Document