Demonstration of Coherent-State Discrimination Using a Displacement-Controlled Photon-Number-Resolving Detector
Publication: Research - peer-review › Journal article – Annual report year: 2010
We experimentally demonstrate a new measurement scheme for the discrimination of two coherent states. The measurement scheme is based on a displacement operation followed by a photon-number-resolving detector, and we show that it outperforms the standard homodyne detector which we, in addition, prove to be optimal within all Gaussian operations including conditional dynamics. We also show that the non-Gaussian detector is superior to the homodyne detector in a continuous variable quantum key distribution scheme.
|Journal||Physical Review Letters|
Copyright 2010 American Physical Society
|Citations||Web of Science® Times Cited: 27|
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