Comment on `Six-state clock model on the square lattice: Fisher zero approach with Wang-Landau sampling'

Seung Ki Baek; Petter Minnhagen; Beom Jun Kim

doi:10.1103/physreve.81.063101

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arXiv · 1005.4836

Comment on `Six-state clock model on the square lattice: Fisher zero approach with Wang-Landau sampling'

Seung Ki Baek·Petter Minnhagen·Beom Jun Kim

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Abstract

Hwang in [Phys. Rev. E 80, 042103 (2009)] suggested that the two transitions of the six-state clock model on the square lattice are not of the Kosterlitz-Thouless type. Here we show from simulations thatat the upper transition, the helicity modulus does make a discontinuous jump to zero. This gives strong evidence for a Kosterlitz-Thouless transition.

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Seung Ki Baek, Petter Minnhagen, Beom Jun Kim. 2010-05-26. Comment on `Six-state clock model on the square lattice: Fisher zero approach with Wang-Landau sampling'. https://doi.org/10.1103/physreve.81.063101

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