A New Family of Integrable Extended Multi-band Hubbard Hamiltonians

Abstract

We consider exactly solvable 1d multi-band fermionic Hamiltonians, which have affine quantum group symmetry for all values of the deformation. The simplest Hamiltonian is a multi-band t-J model with vanishing spin-spin interaction, which is the affinization of an underlying XXZ model. We also find a multi-band generalization of standard t-J model Hamiltonian.

8 pages, LaTeX file, no figures

References in corpus (4)

• $\eta$-pairing as a mechanism of superconductivity in models of strongly correlated electrons
• Superconductivity in an exactly solvable Hubbard model with bond-charge interaction
• Rigorous results on superconducting ground states for attractive extended Hubbard models
• Spin Chain Hamiltonians with Affine $U_{q}g$ symmetry

Cited by in corpus (4)

• Integrable Chain Model with Additional Staggered Model Parameter
• Fermionisation of the Spin-S Uimin-Lai-Sutherland Model: Generalisation of Supersymmetric t-J Model to Spin-S
• Staggered Anisotropy Parameter Modification of the Anisotropic $t-J$ Model
• Integrable Ladder t-J Model with Staggered Shift of the Spectral Parameter