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

Barbieri, Marco, Spagnolo, Nicolo, Genoni, Marco G., Ferreyrol, Franck, Blandino, Remi, Paris, Matteo G. A., Grangier, Philippe and Tualle-Brouri, Rosa (2010) Non-Gaussianity of quantum states: An experimental test on single-photon-added coherent states. Physical Review a, 82 6: . doi:10.1103/PhysRevA.82.063833

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Author Barbieri, Marco
Spagnolo, Nicolo
Genoni, Marco G.
Ferreyrol, Franck
Blandino, Remi
Paris, Matteo G. A.
Grangier, Philippe
Tualle-Brouri, Rosa
Title Non-Gaussianity of quantum states: An experimental test on single-photon-added coherent states
Journal name Physical Review a   Check publisher's open access policy
ISSN 1050-2947
1094-1622
Publication date 2010-12-01
Year available 2010
Sub-type Article (original research)
DOI 10.1103/PhysRevA.82.063833
Open Access Status File (Publisher version)
Volume 82
Issue 6
Total pages 5
Place of publication College Park, MD United States
Publisher American Physical Society
Language eng
Formatted 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.
Keyword Reconstruction
Teleportation
Distillation
Entanglement
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
 
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