Journal article ยท Preprint article
Demonstration of Coherent-State Discrimination Using a Displacement-Controlled Photon-Number-Resolving Detector
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.
Language: | English |
---|---|
Publisher: | AMER PHYSICAL SOC |
Year: | 2010 |
Pages: | 100505 |
ISSN: | 10797114 and 00319007 |
Types: | Journal article and Preprint article |
DOI: | 10.1103/PhysRevLett.104.100505 |
ORCIDs: | Andersen, Ulrik Lund |