108 citations · 1.1k across the 29 of their papers we have counts for
29 papers
Experimental quantum natural gradient optimization in photonics
Yizhi Wang, Shichuan Xue, Yaxuan Wang +10
Variational quantum algorithms (VQAs) combining the advantages of parameterized quantum circuits and classical optimizers, promise practical quantum applications in the Noisy Inter…
Preparing a commercial quantum key distribution system for certification against implementation loopholes
Vadim Makarov, Alexey Abrikosov, Poompong Chaiwongkhot +9
A commercial quantum key distribution (QKD) system needs to be formally certified to enable its wide deployment. The certification should include the system's robustness against kn…
High-rate discretely-modulated continuous-variable quantum key distribution using quantum machine learning
Qin Liao, Jieyu Liu, Anqi Huang +3
We propose a high-rate scheme for discretely-modulated continuous-variable quantum key distribution (DM CVQKD) using quantum machine learning technologies, which divides the whole…
Automated verification of countermeasure against detector-control attack in quantum key distribution
Polina Acheva, Konstantin Zaitsev, Vladimir Zavodilenko +3
Attacks that control single-photon detectors in quantum key distribution using tailored bright illumination are capable of eavesdropping the secret key. Here we report an automated…
Security boundaries of an optical power limiter for protecting quantum key distribution systems
Qingquan Peng, Binwu Gao, Konstantin Zaitsev +7
Unauthorized light injection has always been a vital threat to the practical security of a quantum key distribution (QKD) system. An optical power limiter (OPL) based on the thermo…
Large-scale full-programmable quantum walk and its applications
Yizhi Wang, Yingwen Liu, Junwei Zhan +22
With photonics, the quantum computational advantage has been demonstrated on the task of boson sampling. Next, developing quantum-enhanced approaches for practical problems becomes…
Strong pulse illumination hacks self-differencing avalanche photodiode detectors in a high-speed quantum key distribution system
Binwu Gao, Zhihai Wu, Weixu Shi +5
Implementation of high-speed quantum key distribution~(QKD) has become one of the major focus in the field, which produces high key-generation rate for applications. To achieve hig…
Characterisation of state-preparation uncertainty in quantum key distribution
Anqi Huang, Akihiro Mizutani, Hoi-Kwong Lo +2
To achieve secure quantum key distribution, all imperfections in the source unit must be incorporated in a security proof and measured in the lab. Here we perform a proof-of-princi…
Protecting fiber-optic quantum key distribution sources against light-injection attacks
Anastasiya Ponosova, Daria Ruzhitskaya, Poompong Chaiwongkhot +3
A well-protected and characterised source in a quantum key distribution system is needed for its security. Unfortunately, the source is vulnerable to light-injection attacks, such…
Faking photon number on a transition-edge sensor
Poompong Chaiwongkhot, Jiaqiang Zhong, Anqi Huang +3
We study potential security vulnerabilities of a single-photon detector based on superconducting transition-edge sensor. In a simple experiment, we show that an adversary could fak…
Quingo: A Programming Framework for Heterogeneous Quantum-Classical Computing with NISQ Features
The Quingo Development Team
The increasing control complexity of Noisy Intermediate-Scale Quantum (NISQ) systems underlines the necessity of integrating quantum hardware with quantum software. While mapping h…
Hacking single-photon avalanche detector in quantum key distribution via pulse illumination
Zhihao Wu, Anqi Huang, Huan Chen +6
Quantum key distribution (QKD) has been proved to be information-theoretically secure in theory. Unfortunately, the imperfect devices in practice compromise its security. Thus, to…
General Quantum Bernoulli Factory: Framework Analysis and Experiments
Yong Liu, Jiaqing Jiang, Pingyu Zhu +13
The unremitting pursuit for quantum advantages gives rise to the discovery of a quantum-enhanced randomness processing named quantum Bernoulli factory (QBF). This quantum enhanced…
Variational Quantum Circuits for Quantum State Tomography
Yong Liu, Dongyang Wang, Shichuan Xue +9
Quantum state tomography is a key process in most quantum experiments. In this work, we employ quantum machine learning for state tomography. Given an unknown quantum state, it can…
Optical control of single-photon negative-feedback avalanche diode detector
Gaëtan Gras, Nigar Sultana, Anqi Huang +4
We experimentally demonstrate optical control of negative-feedback avalanche diode (NFAD) detectors using bright light. We deterministically generate fake single-photon detections…
An approach for security evaluation and certification of a complete quantum communication system
Shihan Sajeed, Poompong Chaiwongkhot, Anqi Huang +8
Although quantum communication systems are being deployed on a global scale, their realistic security certification is not yet available. Here we present a security evaluation and…
Security analysis of practical continuous-variable quantum key distribution systems under laser seeding attack
Yi Zheng, Peng Huang, Anqi Huang +2
Here, we investigate the security of the practical one-way CVQKD and CV-MDI-QKD systems under laser seeding attack. In particular, Eve can inject a suitable light into the laser di…
Sample caching Markov chain Monte Carlo approach to boson sampling simulation
Yong Liu, Min Xiong, Chunqing Wu +10
Boson sampling is a promising candidate for quantum supremacy. It requires to sample from a complicated distribution, and is trusted to be intractable on classical computers. Among…
Controlling single-photon detector ID210 with bright light
Vladimir Chistiakov, Anqi Huang, Vladimir Egorov +1
We experimentally demonstrate that a single-photon detector ID210 commercially available from ID Quantique is vulnerable to blinding and can be fully controlled by bright illuminat…
Laser damage attack against optical attenuators in quantum key distribution
Anqi Huang, Ruoping Li, Vladimir Egorov +3
Many quantum key distribution systems employ a laser followed by an optical attenuator to prepare weak coherent states in the source. Their mean photon number must be pre-calibrate…
General-purpose quantum circuit simulator with Projected Entangled-Pair States and the quantum supremacy frontier
Chu Guo, Yong Liu, Min Xiong +12
Recent advances on quantum computing hardware have pushed quantum computing to the verge of quantum supremacy. Random quantum circuits are outstanding candidates to demonstrate qua…
Practical security of continuous-variable quantum key distribution with reduced optical attenuation
Yi Zheng, Peng Huang, Anqi Huang +2
In a practical CVQKD system, the optical attenuator can adjust the Gaussian-modulated coherent states and the local oscillator signal to an optimal value for guaranteeing the secur…
Laser seeding attack in quantum key distribution
Anqi Huang, Álvaro Navarrete, Shi-Hai Sun +3
Quantum key distribution (QKD) based on the laws of quantum physics allows the secure distribution of secret keys over an insecure channel. Unfortunately, imperfect implementations…
Eavesdropper's ability to attack a free-space quantum-key-distribution receiver in atmospheric turbulence
Poompong Chaiwongkhot, Katanya B. Kuntz, Yanbao Zhang +6
The ability of an eavesdropper (Eve) to perform an intercept-resend attack on a free-space quantum key distribution (QKD) receiver by precisely controlling the incidence angle of a…