Adiabatic Cooper-Pair Pumping in a Linear Array of Cooper Pair Boxes

Details Adiabatic Cooper-Pair Pumping in a Linear Array of Cooper Pair Boxes Adiabatic Cooper-Pair Pumping in a Linear Array of Cooper Pair Boxes

2008-05-30

arxiv.org/abs/0805.4717v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

1 figure, 4 pages

Scientific paper

We present a study of adiabatic Cooper pair pumping in one dimensional array of Cooper pair boxes. We do a detailed theoretical analysis of an experimentally realizable stabilized charge pumping scheme in a linear array of Cooper pair boxes. Our system is subjected to synchronized flux and voltage fields and travel along a loop which encloses their critical ground state of the system in the flux-voltage plane. The locking potential in the sine-Gordon model slides and changes its minimum which yields the Cooper pair pumping. Our analytical methods are the Berry phase analysis and Abelian bosonization studies.

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