Zobrazeno 1 - 10
of 409
pro vyhledávání: '"NOTARNICOLA, MICHELE"'
Autor:
Sanvito, Alberto, Cassina, Silvia, Lamperti, Marco, Notarnicola, Michele N., Olivares, Stefano, Allevi, Alessia
In quantum communication protocols, the use of photon-number-resolving detectors could open new perspectives by broadening the way to encode and decode information, and merging the properties of discrete and continuous variables. In this work, we con
Externí odkaz:
http://arxiv.org/abs/2407.07507
Publikováno v:
APL Quantum 1, 036118 (2024)
We address characterization of lossy and dephasing channels in the presence of self-Kerr interaction using coherent probes. In particular, we investigate the ultimate bounds to precision in the joint estimation of loss and nonlinearity and of dephasi
Externí odkaz:
http://arxiv.org/abs/2406.10226
We investigate the role of weak-field homodyne (WF) measurement for quantum communications over a lossy bosonic channel with coherent state encoding. This kind of receiver employs photon-number resolving (PNR) detectors with finite resolution and low
Externí odkaz:
http://arxiv.org/abs/2405.14310
A robust hybrid receiver for binary phase-shift keying discrimination in the presence of phase noise
We address the problem of coherent state discrimination in the presence of phase diffusion. We investigate the role of the hybrid near-optimum receiver (HYNORE) we proposed in [J. Opt. Soc. Am. B 40, 705-714 (2023)] in the task of mitigating the nois
Externí odkaz:
http://arxiv.org/abs/2312.16493
Transmission losses through optical fibers are one of the main obstacles preventing both long-distance quantum communications and continuous-variable quantum key distribution. Optical amplification provides a tool to obtain, at least partially, signa
Externí odkaz:
http://arxiv.org/abs/2309.08041
Publikováno v:
Phys. Rev. A 108, 042619 (2023)
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-intensi
Externí odkaz:
http://arxiv.org/abs/2308.04146
Publikováno v:
New J. Phys. 25, 103014 (2023)
We address a continuous-variable quantum key distribution (CV-QKD) protocol employing quaternary phase-shift-keying (QPSK) of coherent states and a non-Gaussian measurement inspired by quantum receivers minimizing the error probability in a quantum-s
Externí odkaz:
http://arxiv.org/abs/2306.11493
Publikováno v:
Phys. Rev. A 108, 022404 (2023)
Noiseless linear amplifiers (NLAs) provide a powerful tool to achieve long-distance continuous-variable quantum key distribution (CV-QKD) in the presence of realistic setups with non unit reconciliation efficiency. We address a NLA-assisted CV-QKD pr
Externí odkaz:
http://arxiv.org/abs/2305.10976
Publikováno v:
International Journal of Quantum Information, 2023, 2340002
The task of preserving entanglement against noises is of crucial importance for both quantum communication and quantum information transfer. To this aim, quantum error correction (QEC) codes may be employed to compensate, at least partially, the detr
Externí odkaz:
http://arxiv.org/abs/2211.11295
Autor:
Notarnicola, Michele N., Olivares, Stefano, Forestieri, Enrico, Parente, Emanuele, Potì, Luca, Secondini, Marco
Publikováno v:
IEEE Trans. Commun. 72, 375--386 (2024)
To achieve the maximum information transfer and face a possible eavesdropper, the samples transmitted in continuous-variable quantum key distribution (CV-QKD) protocols are to be drawn from a continuous Gaussian distribution. As a matter of fact, in
Externí odkaz:
http://arxiv.org/abs/2211.05688