Beating the standard quantum limit for binary phase-shift-keying discrimination with a realistic hybrid feed-forward receiver
Articolo
Data di Pubblicazione:
2023
Citazione:
Beating the standard quantum limit for binary phase-shift-keying discrimination with a realistic hybrid feed-forward receiver / M.N. Notarnicola, S. Olivares. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - 108:(2023 Oct 24), pp. 042619.1-042619.10. [10.1103/PhysRevA.108.042619]
Abstract:
We propose a hybrid feed-forward receiver (HFFRE) for the discrimination of binary phase-shift-keyed coherent states based on the appropriate combination of a displacement feed-forward receiver (DFFRE) and a homodynelike setup employing a low-intensity local oscillator and photon-number-resolving detectors. We investigate the performance of the proposed scheme, also addressing realistic scenarios in the presence of nonunit quantum detection efficiency, dark counts, and visibility reduction. The present HFFRE outperforms the DFFRE in all conditions, beating the standard quantum limit in particular regimes.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
M.N. Notarnicola, S. Olivares
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