Comment on ``Confinement of slave particles in U(1) gauge theories of strongly interacting electrons"

Details Comment on ``Confinement of slave particles in U(1) gauge theories of strongly interacting electrons" Comment on ``Confinement of slave particles in U(1) gauge theories of strongly interacting electrons"

2000-08-07

arxiv.org/abs/cond-mat/0008099v1

Phys.Rev.Lett.86(2001)942

Physics

Condensed Matter

Strongly Correlated Electrons

1 page, comment on paper by Nayak, P.R.L.85,178(2000)

Scientific paper

10.1103/PhysRevLett.86.942

In a recent Letter, Nayak argued that slave partices are always confined in gauge theories of strongly-correlated electron systems like the t-J model. The argument mostly relies on Elitzur's theorem and the fact that the effective gauge theory under discussion is at infinite coupling. On the other hand, in the previous papers we studied dynamics of the gauge theory of the t-J model showing that the slave particles are in the Coulomb phase below certain critical temperature T{CSS} that depends on hole doping. We comment on the discrepancy between the results in two papers.

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