Heralded noiseless amplification and attenuation of non-Gaussian states of light

C. N. Gagatsos, J. Fiurášek, A. Zavatta, M. Bellini, N. J. Cerf

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

We examine the behavior of non-Gaussian states of light under the action of probabilistic noiseless amplification and attenuation. Surprisingly, we find that the mean-field amplitude may decrease in the process of noiseless amplification - or may increase in the process of noiseless attenuation, a counterintuitive effect that Gaussian states cannot exhibit. This striking phenomenon could be tested with experimentally accessible non-Gaussian states, such as single-photon added coherent states. We propose an experimental scheme, which is robust with respect to the major experimental imperfections, such as inefficient single-photon detection and imperfect photon addition. In particular, we argue that the observation of mean-field amplification by noiseless attenuation should be feasible with current technology.

Original languageEnglish (US)
Article number062311
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume89
Issue number6
DOIs
StatePublished - Jun 9 2014
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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