Capacities of linear quantum optical systems (Articolo in rivista)

Type
Label
  • Capacities of linear quantum optical systems (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevA.85.062314 (literal)
Alternative label
  • Lupo C.; Giovannetti V.; Pirandola S.; Mancini S.; Lloyd S. (2012)
    Capacities of linear quantum optical systems
    in Physical review. A, Atomic, molecular, and optical physics (Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Lupo C.; Giovannetti V.; Pirandola S.; Mancini S.; Lloyd S. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84862673589&partnerID=q2rCbXpz (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 85 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 6 (literal)
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • School of Science and Technology, University of Camerino, I-62032 Camerino, Italy; NEST, Scuola Normale Superiore, Istituto Nanoscienze-CNR, I-56126 Pisa, Italy; Department of Computer Science, University of York, York YO10 5GH, United Kingdom; INFN-Sezione di Perugia, I-06123 Perugia, Italy; Department of Mechanical Engineering, MIT, Cambridge, MA 02139, United States (literal)
Titolo
  • Capacities of linear quantum optical systems (literal)
Abstract
  • A wide variety of communication channels employ the quantized electromagnetic field to convey information. Their communication capacity crucially depends on losses associated to spatial characteristics of the channel such as diffraction and antenna design. Here we focus on the communication via a finite pupil, showing that diffraction is formally described as a memory channel. By exploiting this equivalence we then compute the communication capacity of an optical refocusing system, modeled as a converging lens. Even though loss of information originates from the finite pupil of the lens, we show that the presence of the refocusing system can substantially enhance the communication capacity. We mainly concentrate on communication of classical information, the extension to quantum information being straightforward. © 2012 American Physical Society. (literal)
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