Non-Gaussianity of quantum states : an experimental test on single-photon-added coherent states
Articolo
Data di Pubblicazione:
2010
Citazione:
Non-Gaussianity of quantum states : an experimental test on single-photon-added coherent states / M. Barbieri, N. Spagnolo, M. G. Genoni, F. Ferreyrol, R. Blandino, M. Paris, P. Grangier, R. Tualle-Brouri. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 82:6(2010), pp. 063833.063833.1-063833.063833.5.
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.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
M. Barbieri, N. Spagnolo, M. G. Genoni, F. Ferreyrol, R. Blandino, M. Paris, P. Grangier, R. Tualle-Brouri
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