Skip to Main content Skip to Navigation
Journal articles

Experimental realization of a nondeterministic optical noiseless amplifier

Abstract : Linear amplifiers are necessarily affected by aminimal amount of noise, which is needed in order to preserve the linearity and the unitarity prescribed by quantum mechanics. Such a limitation might be partially overcome if the process is realized by conditioning its operation on a trigger event, for instance, the result of a measurement. Here we present a detailed analysis of a noiseless amplifier, implemented using linear optics, a down-conversion-based single-photon source, and single-photon detection. Our results demonstrate an amplification adding a level of noise lower than the minimum allowed by quantum mechanics for deterministic amplifiers. This is made possible by the nondeterministic character of our device, whose success rate is sufficiently low not to violate any fundamental limit. We compare our experimental data to a model taking into account the main imperfections of the setup and find a good agreement.
Complete list of metadatas

Cited literature [22 references]  Display  Hide  Download

https://hal-iogs.archives-ouvertes.fr/hal-00624758
Contributor : Philippe Grangier <>
Submitted on : Friday, November 20, 2015 - 10:11:28 AM
Last modification on : Wednesday, September 16, 2020 - 5:45:29 PM
Long-term archiving on: : Friday, April 28, 2017 - 2:23:41 PM

File

00624758.pdf
Publisher files allowed on an open archive

Identifiers

Collections

Citation

Franck Ferreyrol, Rémi Blandino, Marco Barbieri, Rosa Tualle-Brouri, Philippe Grangier. Experimental realization of a nondeterministic optical noiseless amplifier. Physical Review A, American Physical Society, 2011, 83 (6), pp.063801. ⟨10.1103/PhysRevA.83.063801⟩. ⟨hal-00624758⟩

Share

Metrics

Record views

400

Files downloads

304