443 citations · 1.1k across the 29 of their papers we have counts for
29 papers
The Shape of Information: Global Information Geometric Limits in Multi-task Quantum Systems
Zishuo Ren, Ziyang Chen, Hong Guo
Future quantum networks are expected to perform multiple tasks simultaneously within a single system, such as integrated sensing and communication (ISAC) architectures. Despite var…
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…
A Novel Noise Analysis Method for Frequency Transfer System by Using ADEV Combine with EMD-WT
Xuan Yang. Junhui Li, Bin Luo, Ziyang Chen +1
In precision frequency transfer systems, stringent requirements are imposed on the phase stability of transmitted signals. Throughout the transmission process, the inherent challen…
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…
Benchmark for Non-reciprocal Attack Detection on Synchronization
Zishuo Ren, Yiting Lin, Yufei Zhang +3
A precise and secure time synchronization is the backbone of both fundamental physics and advanced technologies. Despite ultra-high precision, security, particularly the unresolved…
Inline-Amplification-Free Time Transfer Utilizing Waveform-Resolved Single-Photon Detection
Yufei Zhang, Ziyang Chen, Bin Luo +1
High-precision time transfer over a long haul of fiber plays a significant role in many fields. The core method, namely cascading relay nodes for the compensation of signal attenua…
Gain-Bandwidth-Product-Induced Technical Bound in Time Transfer System without Inline Amplifiers
Yufei Zhang, Ziyang Chen, Hong Guo
Time transfer plays a dispensable role in many fields including navigation and positioning, geodesy, and fundamental tests. However, in certain scenarios where effective relay node…
Dual-comb-enhanced microwave clock synchronization over commercial fiber
Ziyang Chen, Dongrui Yu, Ganbin Lu +4
The large-scale clock network is the key ingredient to obtain high precision in many scenarios, from fundamental research to cutting-edge applications. The advantage of the time sy…
Time-interval Measurement with Linear Optical Sampling at the Femtosecond Level
Dongrui Yu, Ziyang Chen, Xuan Yang +7
High-precision time-interval measurement is a fundamental technique in many advanced applications, including time and distance metrology, particle physics, and ultra-precision mach…
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…
Node-downloadable frequency transfer system based on a mode-locked laser with over 100 km of fiber
Ziyi Jin, Ziyang Chen, Kai Wu +5
To meet the requirements of time-frequency networks and enable frequency downloadability for nodes along the link, we demonstrated the extraction of stable frequency signals at nod…
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…
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…
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…
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…
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…
Strengthening practical continuous-variable quantum key distribution systems against measurement angular error
Tao Shen, Yundi Huang, Xiangyu Wang +3
The optical phase shifter that constantly rotates the local oscillator phase is a necessity in continuous-variable quantum key distribution systems with heterodyne detection. In pr…
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…
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…
Finite-size analysis of continuous variable source-independent quantum random number generation
Junyu Zhang, Yi-Chen Zhang, Ziyong Zheng +3
We study the impact of finite-size effect on continuous variable source-independent quantum random number generation. The central-limit theorem and maximum likelihood estimation th…
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…
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…
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…
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…