Detecting nonlocal Cooper pair entanglement by optical Bell inequality violation

Nigg, Simon E. and Tiwari, Rakesh P. and Walter, Stefan and Schmidt, Thomas L.. (2015) Detecting nonlocal Cooper pair entanglement by optical Bell inequality violation. Physical Review B, 91 (9). 094516.

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Official URL: http://edoc.unibas.ch/40041/

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Based on the Bardeen-Cooper-Schrieffer theory of superconductivity, the coherent splitting of Cooper pairs from a superconductor to two spatially separated quantum dots has been predicted to generate nonlocal pairs of entangled electrons. In order to test this hypothesis, we propose a scheme to transfer the spin state of a split Cooper pair onto the polarization state of a pair of optical photons. We show that the photon pairs produced can be used to violate a Bell inequality, unambiguously demonstrating the entanglement of the split Cooper pairs.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik (Bruder)
UniBasel Contributors:Tiwari, Rakesh and Nigg, Simon and Schmidt, Thomas L. and Walter, Stefan
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:10 May 2017 10:42
Deposited On:02 May 2016 11:46

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