A light emitting diode for entangled photons

R. M. Stevenson; C. L. Salter; I. Farrer; C. A. Nicoll; D. A. Ritchie; A. J. Shields

doi:10.1117/12.879765

21 February 2011 A light emitting diode for entangled photons

R. M. Stevenson, C. L. Salter, I. Farrer, C. A. Nicoll, D. A. Ritchie, A. J. Shields

Proceedings Volume 7933, Physics and Simulation of Optoelectronic Devices XIX; 79331U (2011) https://doi.org/10.1117/12.879765
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

Existing sources of entangled photons require a laser excitation, imposing a practical limit on their potential for large-scale quantum information applications. For the widely used parametric down-conversion sources, zero or multiple photon-pairs are usually emitted due to the probabilistic nature of the non-linear process. This presents an additional fundamental limitation in the form of efficiency and errors. Here we demonstrate the first electrically driven entangled light source, based on a layer of InAs quantum dots embedded in a p-i-n light emitting diode structure, with potential to operate 'on-demand'.

Citation Download Citation

R. M. Stevenson, C. L. Salter, I. Farrer, C. A. Nicoll, D. A. Ritchie, and A. J. Shields "A light emitting diode for entangled photons", Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 79331U (21 February 2011); https://doi.org/10.1117/12.879765

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