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Quantum emitters

Route to indistinguishable photons

Nature Photonics volume 8, pages 427–429 (2014)Cite this article

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The dot-to-dot variation of the optical transition frequency makes it impractical to use single-photon sources based on semiconducting quantum dots in quantum computing, which requires indistinguishable photons. This can now be overcome by using coherently scattered single photons from a dot and tuning them using a microcavity.

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Figure 1: Schematic showing a quantum dot embedded in a photonic-crystal cavity.
Figure 2: Schematic showing spin-flip Raman transitions in a quantum dot–cavity system.

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Authors and Affiliations

  1. Alexander Tartakovskii is at Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK,

    Alexander Tartakovskii

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  1. Alexander Tartakovskii
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Correspondence to Alexander Tartakovskii.

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Tartakovskii, A. Route to indistinguishable photons. Nature Photon 8, 427–429 (2014). https://doi.org/10.1038/nphoton.2014.117

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