Decoherence in a Cooper pair shuttle

Romito, Alessandro and Plastina, Francesco and Fazio, Rosario (2003) Decoherence in a Cooper pair shuttle. Physical Review B - Condensed Matter and Materials Physics, 68 (14): 140502. ISSN 1098-0121

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Abstract

We examine decoherence effects in the Josephson current of a Cooper pair shuttle. Dephasing due to gate voltage fluctuations can either suppress or enhance the critical current and also change its sign. The current noise spectrum displays a peak at the Josephson coupling energy and shows a phase dependence.

Item Type:
Journal Article
Journal or Publication Title:
Physical Review B - Condensed Matter and Materials Physics
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2500/2504
Subjects:
?? electronic, optical and magnetic materialscondensed matter physics ??
ID Code:
139225
Deposited By:
Deposited On:
27 Nov 2019 11:55
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 20:09