Quantum dots in planar cavities - Single and entangled photon sources

Young, Robert and Stevenson, Mark and Atkinson, Paola and Cooper, Ken and Ritchie, David and Shields, Andrew (2007) Quantum dots in planar cavities - Single and entangled photon sources. In: Advances in Solid State Physics. Advaces in Solid State Physics, 46 . Springer Verlag, DEU, pp. 59-69. ISBN 978-3-540-38234-8

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We show that single InAs quantum dots embedded in a planar cavity, formed by mismatched sets of GaAs/AlAs distributed Bragg reflectors, can be a useful source of triggered single photons as well as polarisation-entangled photon pairs. The former is demonstrated with a second order correlation function under 0.1 and the latter with a fidelity exceeding 70%. Such quantum dot devices may be useful in quantum communications and quantum information processing.

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24 May 2013 10:42
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20 Sep 2023 02:17