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Crossed Andreev reflection in quantum wires with strong spin-orbit interaction

Sato, Koji and Loss, Daniel and Tserkovnyak, Yaroslav. (2012) Crossed Andreev reflection in quantum wires with strong spin-orbit interaction. Physical Review B, Vol. 85, H. 23 , 235433.

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Official URL: http://edoc.unibas.ch/dok/A6083494

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Abstract

We theoretically study tunneling of Cooper pairs from an s-wave superconductor into two semiconductor quantum wires with strong spin-orbit interaction under magnetic field, which approximate helical Luttinger liquids. The entanglement of electrons within a Cooper pair can be detected at low temperatures by the electric current cross correlations in the wires. By controlling the relative orientation of the wires, either lithographically or mechanically, on the substrate, these current correlations can be tuned, as dictated by the initial spin entanglement. This proposal of a spin-to-charge readout of quantum correlations is alternative to a recently proposed utilization of the quantum spin Hall insulator.
Faculties and Departments:05 Faculty of Science > Departement Physik
05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss)
UniBasel Contributors:Loss, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Institute of Physics
ISSN:0163-1829
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:10 Apr 2015 09:13
Deposited On:24 May 2013 09:02

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