1.1k citations · 1.9k across the 43 of their papers we have counts for
43 papers
Entanglement Model for Mode-Pairing Quantum Key Distribution
Yi-Fei Lu, Yang Wang, Hong-Wei Li +9
Mode-pairing (MP) quantum key distribution (QKD) eliminates the requirements of phase locking and phase tracking compared with twin-field (TF) QKD while still surpassing the fundam…
Near-Term Quantum Computing Techniques: Variational Quantum Algorithms, Error Mitigation, Circuit Compilation, Benchmarking and Classical Simulation
He-Liang Huang, Xiao-Yue Xu, Chu Guo +5
Quantum computing is a game-changing technology for global academia, research centers and industries including computational science, mathematics, finance, pharmaceutical, material…
Sideband Cooling of a Trapped Ion in Strong Sideband Coupling Regime
Shuo Zhang, Zhuo-Peng Huang, Tian-Ci Tian +4
Conventional theoretical studies on the ground-state laser cooling of a trapped ion have mostly focused on the weak sideband coupling (WSC) regime, where the cooling rate is invers…
Evaluating the Resilience of Variational Quantum Algorithms to Leakage Noise
Chen Ding, Xiao-Yue Xu, Shuo Zhang +2
As we are entering the era of constructing practical quantum computers, suppressing the inevitable noise to accomplish reliable computational tasks will be the primary goal. Leakag…
Active Learning on a Programmable Photonic Quantum Processor
Chen Ding, Xiao-Yue Xu, Yun-Fei Niu +3
Training a quantum machine learning model generally requires a large labeled dataset, which incurs high labeling and computational costs. To reduce such costs, a selective training…
Parameter-Parallel Distributed Variational Quantum Algorithm
Yun-Fei Niu, Shuo Zhang, Chen Ding +2
Variational quantum algorithms (VQAs) have emerged as a promising near-term technique to explore practical quantum advantage on noisy intermediate-scale quantum (NISQ) devices. How…
Parallel-Electromagnetically-Induced-Transparency Near Ground-State Cooling of a Trapped-ion Crystal
Jie Zhang, Man-Chao Zhang, Yi Xie +8
We theoretically propose and experimentally demonstrate a parallel-electromagnetically-induced transparency (parallel-EIT) cooling technique for ion crystals in the Paul trap. It h…
Noise-Resistant Quantum State Compression Readout
Chen Ding, Xiao-Yue Xu, Yun-Fei Niu +2
Qubit measurement is generally the most error-prone operation that degrades the performance of near-term quantum devices, and the exponential decay of readout fidelity severely imp…
Strong quantum computational advantage using a superconducting quantum processor
Yulin Wu, Wan-Su Bao, Sirui Cao +51
Scaling up to a large number of qubits with high-precision control is essential in the demonstrations of quantum computational advantage to exponentially outpace the classical hard…
Steady state phonon occupation of EIT cooling: higher order calculations
Shuo Zhang, Tian-Ci Tian, Zheng-Yang Wu +5
Electromagnetically induced transparency (EIT) cooling has established itself as one of the most widely used cooling schemes for trapped ions during the past twenty years. Compared…
Sending or not sending twin-field quantum key distribution with distinguishable decoy states
Yi-Fei Lu, Mu-Sheng Jiang, Yang Wang +5
Twin-field quantum key distribution (TF-QKD) and its variants can overcome the fundamental rate-distance limit of QKD which has been demonstrated in the laboratory and field while…
Fast Cooling of Trapped Ion in Strong Sideband Coupling Regime
Shuo Zhang, Jian-Qi Zhang, Wei Wu +2
Trapped ion in the Lamb-Dicke regime with the Lamb-Dicke parameter can be cooled down to its motional ground state using sideband cooling. Standard sideband cooling works i…
Quantum search for unknown number of target items hybridizing the fixed-point method with the trail-and-error method
Tan Li, Shuo Zhang, Xiang-Qun Fu +4
For the unsorted database quantum search with the unknown fraction of target items, there are mainly two kinds of methods, i.e., fixed-point or trail-and-error. (i) In terms of…
Finite-key analysis for a practical decoy-state twin-field quantum key distribution
Shao-Fu He, Yang Wang, Hong-Wei Li +1
Twin-field quantum key distribution (TF-QKD), which is immune to all possible detector side channel attacks, enables two remote legitimate users to perform secure communications wi…
Quantum-enhanced least-square support vector machine: simplified quantum algorithm and sparse solutions
Jie Lin, Dan-Bo Zhang, Shuo Zhang +3
Quantum algorithms can enhance machine learning in different aspects. Here, we study quantum-enhanced least-square support vector machine (LS-SVM). Firstly, a novel quantum algorit…
Exact quantum search based on analytical multiphase matching for known number of target items and the experimental demonstration on IBM Q
Tan Li, Xiang-Qun Fu, Yang Wang +4
In [Phys. Rev. Lett. 113, 210501 (2014)], to achieve the optimal fixed-point quantum search in the case of unknown fraction (denoted by ) of target items, the analytical multiph…
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…
Security bound of continuous-variable measurement-device-independent quantum key distribution with imperfect phase reference calibration
Hong-Xin Ma, Peng Huang, Tao Wang +4
Phase reference calibration is a necessary procedure in practical continuous-variable measurement-device-independent quantum key distribution (CV-MDI-QKD) for the need of Bell-Stat…
Long-distance continuous-variable measurement-device-independent quantum key distribution with discrete modulation
Hong-Xin Ma, Peng Huang, Dong-Yun Bai +4
We propose a long-distance continuous-variable measurement-device-independent quantum key distribution (CV-MDI-QKD) protocol with discrete modulation. This kind of discrete-modulat…
Simulating the Dynamics of Single Photons in BosonSampling Devices with Matrix Product States
He-Liang Huang, Wan-Su Bao, Chu Guo
BosonSampling is a well-defined scheme for demonstrating quantum supremacy with photons in near term. Although relying only on multi-photon interference in nonadaptive linear-optic…
Complementary-multiphase quantum search for all numbers of target items
Tan Li, Wan-Su Bao, He-Liang Huang +7
Grover's algorithm achieves a quadratic speedup over classical algorithms, but it is considered necessary to know the value of exactly [Phys. Rev. Lett. 95, 150501 (2005); Phys…
Research on phases of Grover-type algorithms
Bo-wen Ma, Wan-su Bao, Xiang Wang +4
When applying Grover's algorithm to an unordered database, the probability of obtaining correct results usually decreases as the quantity of target increases. To amend the limitati…
Realization of t-bit semiclassical quantum Fourier transform on IBM's quantum cloud computer
Fu Xiang-qun, Bao Wan-su, Huang He-liang +5
To overcome the difficulty of realizing large-scale quantum Fourier transform (QFT) within existing technology, this paper presents a resource-saving method, namely t-bit semiclass…
Continuous-variable measurement-device-independent quantum key distribution with photon subtraction
Hong-Xin Ma, Peng Huang, Dong-Yun Bai +3
It has been found that non-Gaussian operations can be applied to increase and distill entanglement between Gaussian entangled states. We show the successful use of the non-Gaussian…