Controlled-NOT gate operating with single photons

The initial proposal for scalable optical quantum computing required single photon sources, linear optical elements such as beamsplitters and phaseshifters, and photon detection. Here, we demonstrate a two qubit gate using indistinguishable photons from a quantum dot in a pillar microcavity. As the emitter, the optical circuitry, and the detectors are all semiconductor, this is a promising approach towards creating a fully integrated device for scalable quantum computing.The initial proposal for scalable optical quantum computing required single photon sources, linear optical elements such as beamsplitters and phaseshifters, and photon detection. Here, we demonstrate a two qubit gate using indistinguishable photons from a quantum dot in a pillar microcavity. As the emitter, the optical circuitry, and the detectors are all semiconductor, this is a promising approach towards creating a fully integrated device for scalable quantum computing.
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Journal Title

Applied Physics Letters

Volume

100

Issue

DOI

https://doi.org/10.1063/1.4719077

Copyright Statement

© 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 100, 211103 (2012) and may be found at https://doi.org/10.1063/1.4719077

Subject

Physical Sciences not elsewhere classified

Engineering not elsewhere classified

Publication URI

http://hdl.handle.net/10072/62169

Collection

Journal articles