Data di Pubblicazione:
2011
Citazione:
Optimal unambiguous comparison of two unknown squeezed vacua / S. Olivares, M. Sedlak, P. Rapcan, M. Paris, V. Buzek. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 83:1(2011), pp. 012313.012313.1-012313.012313.7. [10.1103/PhysRevA.83.012313]
Abstract:
We propose a scheme for the unambiguous state comparison (USC) of two unknown squeezed vacuum states
of the electromagnetic field. Our setup is based on linear optical elements and photon-number detectors, and it
achieves optimal USC in an ideal case of unit quantum efficiency. In realistic conditions, i.e., for nonunit quantum
efficiency of photodetectors, we evaluate the probability of getting an ambiguous result as well as the reliability
of the scheme, thus showing its robustness in comparison to previous proposals.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
S. Olivares, M. Sedlak, P. Rapcan, M. Paris, V. Buzek
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