http://www.cnr.it/ontology/cnr/individuo/prodotto/ID263714

Tunable non-Gaussian resources for continuous-variable quantum technologies (Articolo in rivista)

Type

Articolo in rivista (Classe)
Prodotto della ricerca (Classe)

Label

Tunable non-Gaussian resources for continuous-variable quantum technologies (Articolo in rivista) (literal)

Anno

2013-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.1103/PhysRevA.88.043818 (literal)

Alternative label

Dell'Anno, F. and Buono, D. and Nocerino, G. and Porzio, A. and Solimeno, S. and De Siena, S. and Illuminati, F. (2013)
Tunable non-Gaussian resources for continuous-variable quantum technologies
in Physical review. A, Atomic, molecular, and optical physics (Online); The American Physical Society, College Park, MD 20740-3844 (Stati Uniti d'America)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Dell'Anno, F. and Buono, D. and Nocerino, G. and Porzio, A. and Solimeno, S. and De Siena, S. and Illuminati, F. (literal)

Pagina inizio

043818-1 (literal)

Pagina fine

043818-13 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://link.aps.org/doi/10.1103/PhysRevA.88.043818 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

88 (literal)

Rivista

Physical review. A, Atomic, molecular, and optical physics (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

13 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

4 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

1Liceo Statale P. E. Imbriani, Via Pescatori 155, I-83100 Avellino, Italy 2Istituto Nazionale di Fisica Nucleare - INFN, Sezione di Napoli, Gruppo collegato di Salerno, I-84084 Fisciano (SA), Italy 3Dipartimento di Ingegneria Industriale, Universit`a degli Studi di Salerno, Via Giovanni Paolo II, I-84084 Fisciano (SA), Italy 4CNISM-Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, Unit`a di Salerno, I-84084 Fisciano (SA), Italy 5Trenitalia spa, DPR Campania, Ufficio di Ingegneria della Manutenzione, IMC Campi Flegrei, Via Diocleziano 255, I-80124 Napoli, Italy 6CNR-SPIN, Unit`a di Napoli, Complesso Universitario Monte Sant'Angelo, I-80126 Napoli, Italy 7Dipartimento di Scienze Fisiche, Universit`a \"Federico II\", Complesso Universitario Monte Sant'Angelo, I-80126 Napoli, Italy (literal)

Titolo

Tunable non-Gaussian resources for continuous-variable quantum technologies (literal)

Abstract

We introduce and discuss a set of tunable two-mode states of continuous-variable systems, as well as a simple, effective scheme for their experimental generation. This class of tunable entangled resources is defined by a general ansatz depending on two experimentally adjustable parameters. It is very ample and flexible as it encompasses Gaussian as well as non-Gaussian states. The latter include, among others, known states such as squeezed number states and de-Gaussified photon-added and photon-subtracted squeezed states, the latter being the most efficient non-Gaussian resources currently available in the laboratory. Moreover, it contains the classes of squeezed Bell states and even more general non-Gaussian resources that can be optimized according to the specific quantum technological task that needs to be realized. The proposed experimental scheme exploits linear optical operations and photon detections performed on a pair of uncorrelated two-mode Gaussian squeezed states. The desired non-Gaussian state is then realized via ancillary squeezing and conditioning. Two independent, freely tunable experimental parameters can be exploited to generate different states and to optimize the performance in implementing a given quantum protocol. As a concrete instance, we analyze in detail the performance of different states considered as resources for the realization of quantum teleportation in realistic conditions. For the fidelity of teleportation of an unknown coherent state, we show that the resources associated with the optimized parameters outperform, in a significant range of experimental values, both Gaussian twin beams and photon-subtracted squeezed states. (literal)

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