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Masses and Phase Structure in the Ginzburg-Landau Model

K. Kajantie·M. Karjalainen·M. Laine·J. Peisa
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Abstract

We study numerically the phase structure of the Ginzburg-Landau model, with particular emphasis on mass measurements. There is no local gauge invariant order parameter, but we find that there is a phase transition characterized by a vanishing photon mass. For type I superconductors the transition is of 1st order. For type II 1st order is excluded by susceptibility analysis, but the photon correlation length suggests 2nd order critical behaviour with ν~ 1/2. The scalar mass, in contrast, does not show clear critical behaviour in the type II regime for V \to \infty, contrary to the conventional picture.

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K. Kajantie, M. Karjalainen, M. Laine, J. Peisa. 1997-08-01. Masses and Phase Structure in the Ginzburg-Landau Model. https://doi.org/10.1103/physrevb.57.3011

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