1202.3374 (Guy Bensky et al.)

On-demand production of entangled photon pairs via quantum-dot biexciton
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Guy Bensky, Selvakumar V. Nair, Harry E. Ruda, Shubhrangshu Dasgupta, Gershon Kurizki, Paul Brumer

A pulsed laser scenario, designed to prepare an appropriately chosen
self-assembled quantum dot with 100% population in a biexciton state, is
proposed. The ensuing radiative emission would provide a near perfect (99.5%)
high rate, on-demand, source of entangled photons.

View original: http://arxiv.org/abs/1202.3374