1997/04/30 by K. Kajantie, M. Karjalainen, M. Laine +1 · 2 citations
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum many-body systems #Theoretical and Computational Physics #cond-mat.supr-con #hep-lat
paper · pdf · doi:10.1103/physrevb.57.3011
published as Phys.Rev. B57 (1998) 3011-3016 · 16 pages, 6 figures. More data gathered, allowing more definite conclusions
arxiv created 1997/08/01 · openalex publication_date 1998/02/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 \ensuremathν\ensuremath∼(1)/(2). The scalar mass, in contrast, does not show clear critical behavior in the type-II regime for \stackrel\ensuremath→V\ensuremath∞, contrary to the conventional picture.