408 citations · 1.6k across the 22 of their papers we have counts for
22 papers
Continuous-Variable Source-Independent Quantum Random Number Generation with General POVMs
Hongyi Zhou, Yu Han, Qiechun Chen +1
Continuous-variable source-independent quantum random number generators offer the highest generation rates among semi-device-independent protocols. In reality, the protocol design…
Measurement-device-independent quantum random number generation over 23 Mbps with imperfect single-photon sources
You-Qi Nie, Hongyi Zhou, Bing Bai +4
Quantum randomness relies heavily on the accurate characterization of the generator implementation, where the device imperfection or inaccurate characterization can lead to incorre…
Improved Real-time Post-Processing for Quantum Random Number Generators
Qian Li, Xiaoming Sun, Xingjian Zhang +1
Randomness extraction is a key problem in cryptography and theoretical computer science. With the recent rapid development of quantum cryptography, quantum-proof randomness extract…
Numerical Framework for Semi-Device-Independent Quantum Random Number Generators
Hongyi Zhou
Quantum random number generator (QRNG) is one of the most widely applied branches in quantum cryptography. Among all QRNG schemes, semi-device-independent (semi-DI) QRNG is quite p…
Quantum key distribution surpassing the repeaterless rate-transmittance bound without global phase locking
Pei Zeng, Hongyi Zhou, Weijie Wu +1
Quantum key distribution -- the establishment of information-theoretically secure keys based on quantum physics -- is mainly limited by its practical performance, which is characte…
Numerical Method for Finite-size Security Analysis of Quantum Key Distribution
Hongyi Zhou, Toshihiko Sasaki, Masato Koashi
Quantum key distribution (QKD) establishes secure links between remote communication parties. As a key problem for various QKD protocols, security analysis gives the amount of secu…
Implementation of a 46-node quantum metropolitan area network
Teng-Yun Chen, Xiao Jiang, Shi-Biao Tang +22
Quantum key distribution (QKD) enables secure key exchanges between two remote users. The ultimate goal of secure communication is to establish a global quantum network. The existi…
Solution Regularity of k-partite Linear Systems -- A Variant of Rado's Theorem
Hongyi Zhou
A classical question in combinatorial number theory asks whether an equation has a solution inside a particular subset of its domain. The Rado's Theorem gives a set of necessary an…
Performance Optimization on Practical Quantum Random Number Generators: Modification on Min-entropy Evaluation and Acceleration on Post Processing
Zehao Zhao, Xiongfeng Ma, Hongyi Zhou
Quantum random number generation is a technique to generate random numbers by extracting randomness from specific quantum processes. As for practical random number generators, they…
Quantum Coherence Witness with Untrusted Measurement Devices
You-Qi Nie, Hongyi Zhou, Jian-Yu Guan +4
Coherence is a fundamental resource in quantum information processing, which can be certified by a coherence witness. Due to the imperfection of measurement devices, a conventional…
Quantum Network: Security Assessment and Key Management
Hongyi Zhou, Kefan Lv, Longbo Huang +1
As an extension of quantum key distribution, secure communication among multiple users is an essential task in a quantum network. When the quantum network structure becomes complic…
Randomness expansion secured by quantum contextuality
Mark Um, Qi Zhao, Junhua Zhang +6
The output randomness from a random number generator can be certified by observing the violation of quantum contextuality inequalities based on the Kochen-Specker theorem. Contextu…
Unification of quantum resources in distributed scenarios
Hongyi Zhou, Xiao Yuan, Xiongfeng Ma
Quantum resources, such as coherence, discord, and entanglement, play as a key role for demonstrating advantage in many computation and communication tasks. In order to find the na…
Randomness quantification of coherent detection
Hongyi Zhou, Pei Zeng, Mohsen Razavi +1
Continuous-variable quantum cryptographic systems, including random number generation and key distribution, are often based on coherent detection. The essence of the security analy…
Phase-Matching Quantum Key Distribution
Xiongfeng Ma, Pei Zeng, Hongyi Zhou
Quantum key distribution allows remote parties to generate information-theoretic secure keys. The bottleneck throttling its real-life applications lies in the limited communication…
Unified framework for quantumness -- coherence, discord, and entanglement
Xiao Yuan, Hongyi Zhou, Mile Gu +1
From an operational perspective, quantumness characterizes the exotic behavior in a physical process which cannot be explained with Newtonian physics. There are several widely used…
Experimental measurement-device-independent quantum random number generation
You-Qi Nie, Jian-Yu Guan, Hongyi Zhou +4
The randomness from a quantum random number generator (QRNG) relies on the accurate characterization of its devices. However, device imperfections and inaccurate characterizations…
Fully integrated 3.2 Gbps quantum random number generator with real-time extraction
Xiao-Guang Zhang, You-Qi Nie, Hongyi Zhou +4
We present a real-time and fully integrated quantum random number generator (QRNG) by measuring laser phase fluctuations. The QRNG scheme based on laser phase fluctuations is featu…
Loss-tolerant measurement-device-independent quantum random number generation
Zhu Cao, Hongyi Zhou, Xiongfeng Ma
Quantum random number generators (QRNGs) output genuine random numbers based upon the uncertainty principle. A QRNG contains two parts in general --- a randomness source and a read…
Source-independent quantum random number generation
Zhu Cao, Hongyi Zhou, Xiao Yuan +1
Quantum random number generators can provide genuine randomness by appealing to the fundamental principles of quantum mechanics. In general, a physical generator contains two parts…
Randomness generation based on spontaneous emissions of lasers
Hongyi Zhou, Xiao Yuan, Xiongfeng Ma
Random number plays a key role in information science, especially in cryptography. Based on the probabilistic nature of quantum mechanics, quantum random number generators can prod…
Intrinsic randomness as a measure of quantum coherence
Xiao Yuan, Hongyi Zhou, Zhu Cao +1
Based on the theory of quantum mechanics, intrinsic randomness in measurement distinguishes quantum effects from classical ones. From the perspective of states, this quantum featur…