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