Comment on "Two Phase Transitions in the Fully frustrated XY Model"
Jorge V. José, G. Ramírez-Santiago
Abstract
The conclusions of a recent paper by Olsson (Phys. Rev. Lett. 75, 2758 (1995), cond-mat/9506082) about the fully frustrated XY model in two dimensions are questioned. In particular, the evidence presented for having two separate chiral and U(1) phase transitions are critically considered.
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