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A high-efficiency quantum non-demolition single photon number resolving detector

W. J. Munro·Kae Nemoto·R. G. Beausoleil·T. P. Spiller
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Abstract

We discuss a novel approach to the problem of creating a photon number resolving detector using the giant Kerr nonlinearities available in electromagnetically induced transparency. Our scheme can implement a photon number quantum non-demolition measurement with high efficiency ($\sim$99%) using less than 1600 atoms embedded in a dielectric waveguide.

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W. J. Munro, Kae Nemoto, R. G. Beausoleil, T. P. Spiller. 2004-09-09. A high-efficiency quantum non-demolition single photon number resolving detector. https://doi.org/10.1103/physreva.71.033819

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