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arXiv · 1007.3273

Photon sorters and QND detectors using single photon emitters

D. Witthaut·M. D. Lukin·A. S. Sørensen
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Abstract

We discuss a new method for realizing number-resolving and non-demolition photo detectors by strong coupling of light to individual single photon emitters, which act as strong optical non-linearities. As a specific application we show how these elements can be integrated into an error-proof Bell state analyzer, whose efficiency exceeds the best possible performance with linear optics even for a modest atom-field coupling. The methods are error-proof in the sense that every detection event unambiguously projects the photon state onto a Fock or Bell state.

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D. Witthaut, M. D. Lukin, A. S. Sørensen. 2012-03-15. Photon sorters and QND detectors using single photon emitters. https://doi.org/10.1209/0295-5075%2F97%2F50007

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