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Entangled Photons from a Light‐Emitting Diode
Author(s) -
Benson Oliver
Publication year - 2010
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201000711
Subject(s) - photon , spontaneous parametric down conversion , optoelectronics , photon entanglement , parametric statistics , diode , physics , light emitting diode , quantum optics , laser , excitation , nonlinear optics , quantum , optics , quantum information processing , quantum information , quantum mechanics , quantum entanglement , statistics , mathematics
Current sources for entangled photon pairs rely mostly on spontaneous parametric down‐conversion in nonlinear optical crystals. Such sources have the drawback of producing pairs randomly and require powerful optical pump lasers. C. L. Salter et al. have now developed a new source that generates entangled photon pairs on demand under electrical excitation. The device is similar to a classical light‐emitting diode (see picture). Its robust and integrated design makes it suitable for applications in quantum information processing.