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Coherent transfer of Cooper pairs by a movable grain

L. Y. Gorelik, A. Isacsson, Y. M. Galperin, R. I. Shekhter, M. Jonson

cond-mat.mes-hallarXiv:cond-mat/0012201

Abstract

A coherent hybrid of states with different number of Cooper pairs can be built in a superconductor grain as a result of periodically repeated discrete encounters with bulk superconductor leads. As a direct manifestation of such states a non-dissipative current depending on the phase difference between the leads can be measured.

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