Supersymmetry in models with strong on-site Coulomb repulsion - application to t-J model

Abstract

A supersymmetric way of imposing the constraint of no double occupancy in models with strong on-site Coulomb repulsion is presented in this paper. In this formulation the physical operators in the constrainted Hilbert space are invariant under local unitary transformations mixing boson and fermion representations. As an illustration the formulation is applied to the $t-J$ model. The model is studied in the mean-field level in the J=0 limit where we show how both the slave-boson and slave-fermion formulations are included naturally in the present approach and how further results beyond both approaches are obtained.

arXiv comment12 pages, Latex file, 1 figure

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Cited by in corpus (7)

• Fermionic Wave Functions from Neural-Network Constrained Hidden States
• Topological spin excitations of Heisenberg antiferromagnets in two dimensions
• Supersymmetric Hubbard Operators
• Connection between the Slave-Particles and X-Operators Path-Integral Representations. a New Perturbative Approach
• Supersymmetric Mean-Field Theory of t-J Model
• Duality picture between antiferromagnetism and d-wave superconductivity in t-J model at two dimensions
• Atomic Model of Susy Hubbard Operators