Lettere al Nuovo Cimento (1971-1985)

, Volume 35, Issue 13, pp 405–412 | Cite as

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

  • H. Kleinert


We 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 penetration depth to coherence length)K 0.8/√2.


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Copyright information

© Società Italiana di Fisica 1982

Authors and Affiliations

  • H. Kleinert
    • 1
  1. 1.Freie Universität BerlinBerlin 33

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