Polarization entanglement visibility of photon pairs emitted by a quantum dot embedded in a microcavity

Details Polarization entanglement visibility of photon pairs emitted by a quantum dot embedded in a microcavity Polarization entanglement visibility of photon pairs emitted by a quantum dot embedded in a microcavity

2004-09-29

arxiv.org/abs/cond-mat/0409745v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

13 pages and 6 figures

Scientific paper

10.1103/PhysRevB.72.035303

We study the photon emission from a quantum dot embedded in a microcavity. Incoherent pumping of its excitons and biexciton provokes the emission of leaky and cavity modes. By solving a master equation we obtain the correlation functions required to compute the spectrum and the relative efficiency among the emission of pairs and single photons. A quantum regime appears for low pumping and large rate of emission. By means of a post-selection process, a two beams experiment with different linear polarizations could be performed producing a large polarization entanglement visibility precisely in the quantum regime.

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