Continuum dual theory of the transition in 3D lattice superconductor

Details Continuum dual theory of the transition in 3D lattice superconductor Continuum dual theory of the transition in 3D lattice superconductor

1996-10-07

arxiv.org/abs/cond-mat/9610052v1

J.Phys.A30:423-430,1997

Physics

Condensed Matter

Superconductivity

7 pages, LaTeX, to appear in Journal of Physics A

Scientific paper

10.1088/0305-4470/30/2/010

A recently proposed form of dual theory for the three dimensional superconductor is rederived starting from the lattice electrodynamics and studied by renormalization group. The superfluid density below and close to the transition vanishes as inverse of the correlation length of the disorder field. The corresponding universal amplitude is given by the fixed point value of the dual charge, and it is calculated to the leading order. The continuum dual theory predicts the divergence of the magnetic field penetration depth with the XY exponent, in contradiction to the results obtained from the Ginzburg-Landau theory for the superconducting order-parameter. Possible reasons for this difference are discussed.

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