Masses and phase structure in the Ginzburg-Landau model
Apr, 1997
12 pages
Published in:
- Phys.Rev.B 57 (1998) 3011-3016
e-Print:
- cond-mat/9704056 [cond-mat]
Report number:
- CERN-TH-97-062,
- CERN-TH-97-62,
- HD-THEP-97-05
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Abstract: (APS)
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 first order. For type-II, a first-order transition is excluded by susceptibility analysis, but the photon correlation length is compatible with second-order critical behavior with ν∼12. The scalar mass, in contrast, does not show clear critical behavior in the type-II regime for V→∞, contrary to the conventional picture.- Landau-Ginzburg model
- critical phenomena
- perturbation theory: higher-order
- lattice field theory: continuum limit
- mass spectrum
- model: superconductivity
- numerical calculations: Monte Carlo
References(23)
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