Nanomechanical pumping of Cooper pairs through NS junction
S. I. Kulinich,
L. Y. Gorelik,
R. I. Shekhter
Abstract:We consider a system consisting of a single-level quantum dot that performs mechanical periodic oscillations between spatially distant normal and superconducting electrodes, approaching them at a distance that allows the exchange of electrons through the vacuum tunnel barrier. Considering that the distance between the electrodes is much greater than the tunneling length, we show that charge pumping occurs in such a nanosystem even when the electrochemical potentials of the electrodes coincide. In this case, th… Show more
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