Critical Exponents of the Superconducting Phase Transition
Michael Kiometzis, Hagen Kleinert, Adriaan M. J. Schakel
DOI 10.1103/PhysRevLett.73.1975 · Physical Review Letters
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Abstract
We study the critical exponents of the superconducting phase transition in the context of renormalization group theory starting from a dual formulation of the Ginzburg-Landau theory. The dual formulation describes a loop gas of Abrikosov flux tubes which proliferate when the critical temperature is approached from below. In contrast to the Ginzburg-Landau theory, it has a spontaneously broken global symmetry and possesses an infrared stable fixed point. The exponents coincide with those of a superfluid with reversed temperature axis.
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