Monitoring of continuous-variable quantum key distribution system in real environment
نویسندگان
چکیده
منابع مشابه
Saturation Attack on Continuous-Variable Quantum Key Distribution System
Introduction Quantum key distribution (QKD) [1] enables two remote parties Alice and Bob to share common secure keys which are unknown to a potential eavesdropper. Unconditional security of QKD is based on the fundamental laws of quantum mechanics, but in reality, securities of practical QKD systems could be jeopardized by physical implementations. In discretevariable (DV) QKD system, due to de...
متن کاملSingle-quadrature continuous-variable quantum key distribution
Most continuous-variable quantum key distribution schemes are based on the Gaussian modulation of coherent states followed by continuous quadrature detection using homodyne detectors. In all previous schemes, the Gaussian modulation has been carried out in conjugate quadratures thus requiring two independent modulators for their implementations. Here, we propose and experimentally test a largel...
متن کاملTrusted noise in continuous-variable quantum key distribution
We address the role of the phase-insensitive trusted preparation and detection noise in the security of a continuous-variable quantum key distribution, considering the Gaussian protocols on the basis of coherent and squeezed states and studying them in the conditions of Gaussian lossy and noisy channels. The influence of such a noise on the security of Gaussian quantum cryptography can be cruci...
متن کاملContinuous-variable quantum key distribution in non-Markovian channels
Ruggero Vasile,1,* Stefano Olivares,2,3,4,† Matteo G. A. Paris,4,‡ and Sabrina Maniscalco5,1,§ 1Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turun yliopisto, Finland 2Dipartimento di Fisica, Università degli Studi di Trieste, I-34151 Trieste, Italy 3CNISM, Unitá di Ricerca di Milano Università, I-20133 Milano, Italy 4Dipartimento di Fisica...
متن کاملSecurity Thresholds of Multicarrier Continuous-Variable Quantum Key Distribution
We prove the secret key rate formulas and derive security threshold parameters of multi-carrier continuous-variable quantum key distribution (CVQKD). In a multicarrierCVQKD scenario, the Gaussian input quantum states of the legal parties are granulatedinto Gaussian subcarrier CVs (continuous-variables). The multicarrier communicationformulates Gaussian sub-channels from the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2017
ISSN: 1094-4087
DOI: 10.1364/oe.25.019429