Masses and phase structure in the Ginzburg-Landau model

Apr, 1997
12 pages
Published in:
  • Phys.Rev.B 57 (1998) 3011-3016
e-Print:
Report number:
  • CERN-TH-97-062,
  • CERN-TH-97-62,
  • HD-THEP-97-05

Citations per year

1997200420112018202502468
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