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Physical Review B

Comment on “Green's function theory for infinite and semi-infinite particle chains”

Vadim A. Markel, Andrey Karlovich Sarychev

Published Jul 11, 2012• 20 citations
Publisher

Abstract

In this Comment, we argue that the criticism of our previous paper, which was recently articulated by Hadad and Steinberg, is unwarranted.
DOI
10.1103/physrevb.86.037401

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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.