Correlated and entangled pairs of single photons from semiconductor quantum dots

N. Akopian, N. H. Lindner, E. Poem, Y. Berlatzky, J. Avron, D. Gershoni, B. D. Gerardot, P. M. Petroff

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10 Citations (Scopus)


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.

Original languageEnglish
Article number081712
Pages (from-to)-
Number of pages4
JournalJournal of Applied Physics
Issue number8
Publication statusPublished - 27 Apr 2007

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