edoc

Finite-Bias Cooper Pair Splitting

Hofstetter, L. and Csonka, S. and Baumgartner, A. and Fulop, G. and d'Hollosy, S. and Nygard, J. and Schonenberger, C.. (2011) Finite-Bias Cooper Pair Splitting. Physical review letters, Vol. 107 , 136801.

Full text not available from this repository.

Official URL: http://edoc.unibas.ch/dok/A6070299

Downloads: Statistics Overview

Abstract

In a device with a superconductor coupled to two parallel quantum dots (QDs) the electrical tunability of the QD levels can be used to exploit nonclassical current correlations due to the splitting of Cooper pairs. We experimentally investigate the effect of a finite potential difference across one quantum dot on the conductance through the other completely grounded QD in a Cooper pair splitter fabricated on an InAs nanowire. We demonstrate that the nonlocal electrical transport through the device can be tuned by electrical means and that the energy dependence of the effective density of states in the QDs is relevant for the rates of Cooper pair splitting (CPS) and elastic cotunneling. Such experimental tools are necessary to understand and develop CPS-based sources of entangled electrons in solid-state devices.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Experimentalphysik Nanoelektronik (Schönenberger)
UniBasel Contributors:Schönenberger, Christian and Hofstetter, Lukas and Csonka, Szabolcs and Baumgartner, Andreas and D'Hollosy, Samuel
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Physical Society
ISSN:0031-9007
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:01 Mar 2013 11:13
Deposited On:01 Mar 2013 11:06

Repository Staff Only: item control page