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Correlated and entangled pairs of single photons from semiconductor quantum dots

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8 Author(s)
Akopian, N. ; Department of Physics, Technion—Israel Institute of Technology, Haifa 32000, Israel ; Lindner, N.H. ; Poem, E. ; Berlatzky, Y.
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.2722769 

Entangled photon pairs are emitted from a biexciton decay cascade of single quantum dots when spectral filtering is applied. We show this by experimentally measuring the density matrix of the polarization state of the photon pair emitted from a continuously pumped quantum dot. The matrix clearly satisfies the Peres criterion for entanglement. By applying in addition a temporal window, the quantum dot becomes an entangled light source.

Published in:

Journal of Applied Physics  (Volume:101 ,  Issue: 8 )

Date of Publication:

Apr 2007

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