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Operator-level quantum acceleration of non-logconcave sampling. [PDF]
Proc Natl Acad Sci U S ALeng J, Ding Z, Chen Z, Lin L.
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Polarization-multiplexed continuous-variable quantum key distribution
Conference on Lasers and Electro-Optics, 2020We first experimentally demonstrate a polarization-multiplexed continuous-variable quantum key distribution architecture eliminating the requirement for polarization controlling, where the polarization mixing and phase rotation are simultaneously compensated in a dual reference compensation scheme.
Binjie Chu +3 more
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Quantum-scissor amplified continuous-variable quantum key distribution
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2017The recent progress in continuous-variable quantum key distribution (CV-QKD) systems has placed them in a competitive position with their conventional discrete-variable counterparts [1]. In particular, CV-QKD might be the better choice over short distances. When it comes to long distances, however, the story is different.
Masoud Ghalaii +2 more
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Introduction to Continuous Variable Quantum Key Distribution
Optical Fiber Communication Conference (OFC) 2022, 2022In this talk, we will review the present status of continuous-variable quantum key distribution, including optical configuration and security analysis, and would like to discuss future prospects for integration with coherent optical communications.
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Atmospheric effect study of continuous-variable quantum key distribution
Optics Letters, 2020We proposed a data acquisition method to monitor local oscillator (LO) intensity in real time in unidimensional continuous-variable quantum key distribution protocol. Based on this proposed method, the influence of weather conditions on the average transmittance and excess noise is studied, such as relative wetness, visibility, and beam jitter.
Shi-Yang, Shen +3 more
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Feasibility of continuous-variable quantum key distribution through fog
Optics Letters, 2021Free-space quantum key distribution (QKD) can be very attractive due to the possibility of its flexible and rapid deployment. In spite of the advantages of free-space transmission, there is still a risk of encountering bad weather such as fog. Here we experimentally demonstrate free-space QKD using continuous variables under foggy conditions and ...
Shiyu Wang +3 more
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A Review on Continuous-Variable Quantum Key Distribution Security
2022Regarding the security concerns arising from the threat that quantum computing algorithms pose on some today’s most efficient and widely implemented public-key cryptographic systems, it has become necessary to find alternative cryptographic techniques to support private (or symmetric) key cryptographic schemes by means of key distribution.
García Callejo, Aída +3 more
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Key-sifting algorithms for continuous-variable quantum key distribution
Physical Review A, 2021We propose key-sifting algorithms for a continuous-variable quantum key distribution (CV-QKD) protocol using a machine-learning framework based on the isolation forest and a traditional digital signal-processing scheme based on the Wiener filter. In previous works, the key-sifting procedure performs by discarding bits on different measurement basis ...
Di Jin +4 more
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Digital Self-Coherent Continuous Variable Quantum Key Distribution System
Optical Fiber Communication Conference (OFC) 2020, 2020We investigate a continuous variable quantum key distribution system with digital tracking of both polarization and phase. Stable operation over 25km for 36 hours with secret key rates between 1.9 and 2.8 Mbit/s is demonstrated.
Eriksson, Tobias A. +10 more
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