Quantum dots for single photon and photon pair technology

Stevenson, R. Mark and Young, Robert and Thompson, R. M. and Yuan, Zhillang and Kardynal, B. E. and Farrer, I. and Ward, M. B. and Ritchie, D. A. and Shields, A. J. (2006) Quantum dots for single photon and photon pair technology. In: Quantum Computing in Solid State Systems. Springer, New York, pp. 288-297. ISBN 978-0-387-26332-8

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The excitation of a quantum dot from its ground state depends on the probabilistic nature of carrier capture, and thus radiative decay can occur via a multi photon cascade. It is also possible that non-radiative initial exciton states can be formed when the spins of the component electron and heavy hole have the same sign. Time integrated and time resolved micro-photoluminescence experiments are presented that reveal the broader properties of single photon and multi-photon emission from InAs quantum dots, including single photon emission, polarisation correlated photon emission, and dark state blocking, and their implications in terms of quantum information technology are discussed.

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12 Jul 2012 13:27
Last Modified:
17 Sep 2023 03:47