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arXiv · 0805.3445

Quasiparticle cooling of a single-Cooper-pair-transistor

A. J. Ferguson
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Abstract

A superconducting tunnel junction is used to directly extract quasiparticles from one of the leads of a single-Cooper-pair-transistor. The consequent reduction in quasiparticle density causes a lower rate of quasiparticle tunneling onto the device. This rate is directly measured by radio-frequency reflectometry. Local cooling may be of direct benefit in reducing the effect of quasiparticles on coherent superconducting nanostructures.

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A. J. Ferguson. 2008-07-11. Quasiparticle cooling of a single-Cooper-pair-transistor. https://doi.org/10.1063/1.2968214

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