Non-Gaussianity of quantum states: An experimental test on single-photon-added coherent states

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Title Non-Gaussianity of quantum states: An experimental test on single-photon-added coherent states
Author Barbieri, Marco; Spagnolo, Nicolò; Genoni, Marco G.; Ferreyrol, Franck Michel; Blandino, Rémi; Paris, Matteo G. A.; Grangier, Philippe; Tualle-Brouri, Rosa
Journal Name Physical Review A
Year Published 2010
Place of publication United States
Publisher American Physical Society
Abstract Non-Gaussian states and processes are useful resources in quantum information with continuous variables. An experimentally accessible criterion has been proposed to measure the degree of non-Gaussianity of quantum states based on the conditional entropy of the state with a Gaussian reference. Here we adopt such a criterion to characterize an important class of nonclassical states: single-photon-added coherent states. Our studies demonstrate the reliability and sensitivity of this measure and use it to quantify how detrimental is the role of experimental imperfections in our implementation.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1103/PhysRevA.82.063833
Copyright Statement Copyright 2010 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Volume 82
Issue Number 6
Page from 063833-1
Page to 063833-5
ISSN 1050-2947
Date Accessioned 2011-12-01
Date Available 2012-06-26T00:41:36Z
Language en_US
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Quantum Information, Computation and Communication; Quantum Optics; Quantum Physics
URI http://hdl.handle.net/10072/42809
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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