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Critical Dynamics of Superconductors in the Charged Regime

Courtney Lannert·Smitha Vishveshwara·Matthew P. A. Fisher
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Abstract

We investigate the finite temperature critical dynamics of three-dimensional superconductors in the charged regime, described by a transverse gauge field coupling to the superconducting order parameter. Assuming relaxational dynamics for both the order parameter and the gauge fields, within a dynamical renormalization group scheme, we find a new dynamic universality class characterized by a finite fixed point ratio between the transport co-efficients associated with the order parameter and gauge fields, respectively. We find signatures of this universality class in various measurable physical quantities, and in the existence of a universal amplitude ratio formed by a combination of physical quantities.

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Courtney Lannert, Smitha Vishveshwara, Matthew P. A. Fisher. 2004-02-27. Critical Dynamics of Superconductors in the Charged Regime. https://doi.org/10.1103/physrevlett.92.097004

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