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Supersymmetric approach to the infinite U Hubbard Model

P. Coleman·C. Pepin
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Abstract

We present a preliminary discussion on the use of supersymmetric representation of the Hubbard operator which unifies the slave boson and slave fermion representations into a single $U (1)\times SU (1| 1)$ gauge theory to treat the physics of the infinite U Hubbard model. By looking for solutions to the Hamiltonian in which the spins can exist as both condensed ordered moments and as mobile charged carriers, we examine the possibility of a Nagaoka ferromagnetic phase at finite doping with a quantum critical point into the paramagnetic phase.

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P. Coleman, C. Pepin. 2001-10-04. Supersymmetric approach to the infinite U Hubbard Model. https://doi.org/10.1016/s0921-4526(01)01501-0

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