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Large sample-to-sample fluctuations of the nonequilibrium critical current through mesoscopic Josephson junctions by Samuelsson, P.; Schomerus, H. is a scholarly article available to read on EtoBox.

What is Large sample-to-sample fluctuations of the nonequilibrium critical current through mesoscopic Josephson junctions about?

We present a theory for the nonequilibrium current in a mesoscopic Josephson junction which is coupled to a normal electron reservoir, and apply it to a chaotic junction. Large sample-to-sample fluctuations of the critical current $I_{\rm c}$ are found, with ${rms} I_{\rm c} \simeq \sqrt{N}e\Delta/\hbar$, when the voltage difference eV between the electron reservoir and the junction exceeds the superconducting gap $\Delta$ and the number of modes N connecting the junction to the superconducting electrodes is large.

Author

Samuelsson, P.; Schomerus, H.

Published

2000

Language

EN