activity
20132026
most citedLong-Distance Continuous-Variable Quantum Key Distribution over 202.81 km of Fiber

443 citations · 2.5k across the 49 of their papers we have counts for

collaborators

49 papers

quant-ph2026

Discrete-modulated continuous-variable quantum key distribution with uncertainty principle

Jiale Mi, Yiming Bian, Song Yu +3

Continuous-variable quantum key distribution is a compelling framework for scalable quantum networks due to its seamless integration with existing optical communication infrastruct…

quant-ph2026

Continuous-mode analysis of improved two-way CV-QKD

Yanhao Sun, Jiayu Ma, Xiangyu Wang +3

Continuous-variable quantum key distribution (CV-QKD) enables information-theoretically secure key generation between legitimate parties. To further enhance system performance, an…

quant-ph2025

Continuous-mode analysis for practical continuous-variable quantum key distribution

Yanhao Sun, Jiayu Ma, Xiangyu Wang +3

Continuous-variable quantum key distribution (CV-QKD) enables two remote parties to establish information-theoretically secure keys and offers high practical feasibility due to its…

quant-ph2025★ 7 cited

Approaching the Key Rate Limit in Continuous-Variable Quantum Key Distribution Network

Yiming Bian, Yichen Zhang, Song Yu +2

A quantum key distribution network enables pairs of users to generate independent secret keys by leveraging the principles of quantum physics. For end-to-end secure communication,…

physics.optics2023★ 7 cited

Hundred-Femtosecond-Level Concise Optical Time Delay Measurement System Based on Linear Optical Sampling

Yufei Zhang, Ziyang Chen, Dongrui Yu +3

Fiber-delay measurement is one of the key fundamental technologies in numerous fields. Here we propose and experimentally demonstrate a high-precision and concise optical time dela…

quant-ph2023★ 189 cited

Continuous-variable quantum key distribution system: past, present, and future

Yichen Zhang, Yiming Bian, Zhengyu Li +2

Quantum key distribution provides secure keys with information-theoretic security ensured by the principle of quantum mechanics. The continuous-variable version of quantum key dist…

quant-ph2023★ 6 cited

Countermeasure for negative impact of practical source in continuous-variable measurement-device-independent quantum key distribution

Luyu Huang, Xiangyu Wang, Ziyang Chen +3

Continuous-variable measurement-device-independent quantum key distribution (CV-MDI QKD) can defend all attacks on the measurement devices fundamentally. Consequently, higher requi…

quant-ph2023★ 35 cited

Experimental upstream transmission of continuous variable quantum key distribution access network

Xiangyu Wang, Ziyang Chen, Zhenghua Li +3

Continuous-variable quantum key distribution which can be implemented using only low-cost and off-the-shelf components reveals great potential in the practical large-scale realizat…

quant-ph2023★ 1 cited

Non-Gaussian reconciliation for continuous-variable quantum key distribution

Xiangyu Wang, Menghao Xu, Yin Zhao +3

Non-Gaussian modulation can improve the performance of continuous-variable quantum key distribution (CV-QKD). For Gaussian modulated coherent state CV-QKD, photon subtraction can r…

quant-ph2023★ 5 cited

High-Rate Point-to-Multipoint Quantum Key Distribution using Coherent States

Yiming Bian, Yi-Chen Zhang, Chao Zhou +3

Quantum key distribution (QKD) which enables information-theoretically security is now heading towards quantum secure networks. It requires high-performance and cost-effective prot…

quant-ph2022★ 89 cited

Continuous-mode quantum key distribution with digital signal processing

Ziyang Chen, Xiangyu Wang, Song Yu +2

Continuous-variable quantum key distribution (CVQKD) offers the specific advantage of sharing keys remotely by the use of standard telecom components, thereby promoting cost-effect…

quant-ph2021★ 1 cited

Realizing downstream access network using continuous-variable quantum key distribution

Yundi Huang, Tao Shen, Xiangyu Wang +4

Quantum key distribution (QKD) which enables the secure distribution of symmetric keys between two legitimate parties is of great importance in future network security. Access netw…

quant-ph2021★ 57 cited

Rate compatible reconciliation for continuous-variable quantum key distribution using Raptor-like LDPC codes

Chao Zhou, Xiangyu Wang, Zhiguo Zhang +3

In the practical continuous-variable quantum key distribution (CV-QKD) system, the postprocessing process, particularly the error correction part, significantly impacts the system…

quant-ph2020★ 24 cited

Bias-free source-independent quantum random number generator

Ziyong Zheng, Yi-Chen Zhang, Min Huang +3

A bias-free source-independent quantum random number generator scheme based on the measurement of vacuum fluctuation is proposed to realize the effective elimination of system bias…

quant-ph2020★ 443 cited

Long-Distance Continuous-Variable Quantum Key Distribution over 202.81 km of Fiber

Yi-Chen Zhang, Ziyang Chen, Stefano Pirandola +7

Quantum key distribution provides secure keys resistant to code-breaking quantum computers. The continuous-variable version of quantum key distribution offers the advantages of hig…

quant-ph2019★ 45 cited

One-Time Shot-Noise Unit Calibration Method for Continuous-Variable Quantum Key Distribution

Yi-Chen Zhang, Yundi Huang, Ziyang Chen +3

The shot-noise unit in continuous-variable quantum key distribution plays an important and fundamental role in experimental implementation as it is used as a normalization paramete…

quant-ph2019★ 67 cited

Continuous-Variable Quantum Key Distribution with Rateless Reconciliation Protocol

Chao Zhou, Xiangyu Wang, Yi-Chen Zhang +3

Information reconciliation is crucial for continuous-variable quantum key distribution (CV-QKD) because its performance affects the secret key rate and maximal secure transmission…

quant-ph2019★ 28 cited

Improving parameter estimation of entropic uncertainty relation in continuous-variable quantum key distribution

Ziyang Chen, Yi-Chen Zhang, Xiangyu Wang +2

The entropic uncertainty relation (EUR) is of significant importance in the security proof of continuous-variable quantum key distribution under coherent attacks. The parameter est…

quant-ph2019★ 6 cited

The m-least significant bits operation for quantum random number generation

Ziyang Chen, Zhengyu Li, Bingjie Xu +2

Quantum random number generators (QRNGs) can provide genuine randomness based on the inherent unpredictable nature of quantum physics. The extracted randomness relies not only on t…

quant-ph2019

Experimental implementation of bias-free quantum random number generator based on vacuum fluctuation

Ziyong Zheng, Yi-Chen Zhang, Song Yu +1

We experimentally demonstrate a bias-free optical quantum random number generator with real-time randomness extraction to directly output uniform distributed random numbers by meas…

quant-ph2019★ 1 cited

High Throughput and Low Cost LDPC Reconciliation for Quantum Key Distribution

Haokun Mao, Qiong Li, Qi Han +1

Reconciliation is a crucial procedure in post-processing of Quantum Key Distribution (QKD), which is used for correcting the error bits in sifted key strings. Although most studies…

quant-ph2018★ 12 cited

Continuous-variable source-device-independent quantum key distribution against general attacks

Yi-Chen Zhang, Ziyang Chen, Christian Weedbrook +2

The continuous-variable quantum key distribution with entanglement in the middle, a semi-device-independent protocol, places the source at the untrusted third party between Alice a…

quant-ph2018★ 7 cited

Improving the lower bound to the secret-key capacity of the thermal amplifier channel

Gan Wang, Carlo Ottaviani, Hong Guo +1

We consider the noisy thermal amplifier channel, where signal modes are amplified together with environmental thermal modes. We focus on the secret-key capacity of this channel, wh…

physics.ins-det2018★ 99 cited

1.2 GHz Balanced Homodyne Detector for Continuous-Variable Quantum Information Technology

Xiaoxiong Zhang, Yi-Chen Zhang, Zhengyu Li +2

Balanced homodyne detector (BHD) that can measure the field quadratures of coherent states has been widely used in a range of quantum information technologies. Generally, the BHD t…