Subradiant Split Cooper Pairs

Audrey Cottet, Takis Kontos, and Alfredo Levy Yeyati
Phys. Rev. Lett. 108, 166803 – Published 20 April 2012
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Abstract

We suggest a way to characterize the coherence of the split Cooper pairs emitted by a double-quantum-dot based Cooper pair splitter (CPS), by studying the radiative response of such a CPS inside a microwave cavity. The coherence of the split pairs manifests in a strongly nonmonotonic variation of the emitted radiation as a function of the parameters controlling the coupling of the CPS to the cavity. The idea to probe the coherence of the electronic states using the tools of cavity quantum electrodynamics could be generalized to many other nanoscale circuits.

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  • Received 29 November 2011

DOI:https://doi.org/10.1103/PhysRevLett.108.166803

© 2012 American Physical Society

Authors & Affiliations

Audrey Cottet1, Takis Kontos1, and Alfredo Levy Yeyati2

  • 1Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS UMR 8551, Laboratoire associé aux universités Pierre et Marie Curie et Denis Diderot, 24, rue Lhomond, 75231 Paris Cedex 05, France
  • 2Departamento de Física Teórica de la Materia Condensada C-V and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, E-28049 Madrid, Spain

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Issue

Vol. 108, Iss. 16 — 20 April 2012

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