Optimal quantum pump in the presence of a superconducting lead

Details Optimal quantum pump in the presence of a superconducting lead Optimal quantum pump in the presence of a superconducting lead

2002-07-20

arxiv.org/abs/cond-mat/0207495v1

Phys. Reb. B Vol.66, 201305 (2002).

Physics

Condensed Matter

Scientific paper

10.1103/PhysRevB.66.201305

We investigate the parametric pumping of a hybrid structure consisting of a normal quantum dot, a normal lead and a superconducting lead. Using the time dependent scattering matrix theory, we have derived a general expression for the pumped electric current and heat current. We have also derived the relationship among the instantaneous pumped heat current, electric current, and shot noise. This gives a lower bound for the pumped heat current in the hybrid system similar to that of the normal case obtained by Avron et al.

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