Bell-Inequality Violation with a Triggered Photon-Pair Source

Young, R. J. and Stevenson, R. M. and Hudson, A. J. and Nicoll, C. A. and Ritchie, D. A. and Shields, A. J. (2009) Bell-Inequality Violation with a Triggered Photon-Pair Source. Physical review letters, 102 (3). -. ISSN 0031-9007

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Abstract

Here we demonstrate, for the first time, violation of Bell's inequality using a triggered quantum dot photon-pair source without post-selection. Furthermore, the fidelity to the expected Bell state is increased above 90% using temporal gating to reject photons emitted at times when collection of uncorrelated light is more probable. A direct measurement of a CHSH Bell inequality is made showing a clear violation, highlighting that a quantum dot entangled photon source is suitable for communication exploiting nonlocal quantum correlations.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
54911
Deposited By:
Deposited On:
07 Jun 2012 10:37
Refereed?:
Yes
Published?:
Published
Last Modified:
20 May 2020 02:31