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paper

Limitations of the mean field slave-particle approximations

arXiv:cond-mat/0406697 · doi:10.1103/PhysRevB.70.052508

Abstract

We show that the transformation properties of the mean field slave boson/fermion order parameters under an action of the global SU(2) group impose certain restrictions on their applications to describe the phase diagram of the t-J model.

to appear in Phys. Rev. B