Comment on "General Method to Determine Replica Symmetry Breaking Transitions"

Details Comment on "General Method to Determine Replica Symmetry Breaking Transitions" Comment on "General Method to Determine Replica Symmetry Breaking Transitions"

1998-11-05

arxiv.org/abs/cond-mat/9811080v1

Phys. Rev. Lett. 82, 5174 (1999)

Physics

Condensed Matter

Disordered Systems and Neural Networks

1 page, RevTeX

Scientific paper

10.1103/PhysRevLett.82.5174

In a recent letter Marinari et al [Phys. Rev. Lett. 81, 1698 (1998)] introduced a new method to study spin glass transitions and argued that by probing replica symmetry (RS) as opposed to time reversal symmetry (TRS), their method unambiguously shows that replica symmetry breaking (RSB) occurs in short-range spin glasses. In this comment we show that while the new method is indeed useful for studying transitions in systems where TRS is absent (such as the p-spin model studied by them), the conclusion that it shows the existence of RSB in short-range spin glasses is wrong.

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