Masses and phase structure in the Ginzburg-Landau model

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 \nu ~ 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.

Locations

• Physical review. B, Condensed matter - View
• arXiv (Cornell University) - View - PDF
• CERN Document Server (European Organization for Nuclear Research) - View - PDF
• DataCite API - View