Abstract
We present a new evaluation of the fluctuations triggering the decay of supercurrents. Contrary to the existing treatment available in the literature, our result emerges in a simple and closed form. This is due to the fact that, in a polar decomposition δ = ϱ e i γ of the order parameter, we sum over all azimuthal paths explicitly, thereby arriving at a fluctuation determinant for the ϱ variable alone which can be evaluated exactly.
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