Disorder version of the Abelian Higgs model and the order of the superconductive phase transition

  title={Disorder version of the Abelian Higgs model and the order of the superconductive phase transition},
  author={Hagen Kleinert},
  journal={Lettere al Nuovo Cimento (1971-1985)},
  • H. Kleinert
  • Published 1 November 1982
  • Physics
  • Lettere al Nuovo Cimento (1971-1985)
SummaryWe transform the Abelian Higgs model in three dimensions (i.e. the Grinzburg-Landau theory) to a disorder field theory. The new fields describe the grand canonical ensemble of vortex lines in the superconductor and take a nonzero expectation in the normal state (signalizing their proliferation). The disorder theory allows for a simple determination of the tricritical point where the second-order phase transition changes to first. This happens for a Grinzburg-Landau parameter (= ratio of… 
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