Data di Pubblicazione:
2016
Citazione:
Phase noise in collective binary phase shift keying with Hadamard words / M. Jarzyna, V. Lipinska, A. Klimek, K. Banaszek, M.G.A. Paris. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 24:2(2016), pp. 1693-1698. [10.1364/OE.24.001693]
Abstract:
We analyze the effect of phase fluctuations in an optical communication scheme based on collective detection of sequences of binary coherent state symbols using linear optics and photon counting. When the phase noise is absent, the scheme offers qualitatively improved nonlinear scaling of the spectral efficiency with the mean photon number in the low-power regime compared to individual detection. We show that this feature, providing a demonstration of superaddivitity of accessible information in classical communication over quantum channels, is preserved if random phases imprinted on transmitted symbols fluctuate around a reference fixed over the sequence length.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
M. Jarzyna, V. Lipinska, A. Klimek, K. Banaszek, M.G.A. Paris
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