224 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Southern University of Science and TechnologyCN79 papers
- Sun Yat-sen UniversityCN26 papers
- Beijing Academy of Quantum Information SciencesCN21 papers
- Chinese Academy of SciencesCN21 papers
- Hefei UniversityCN21 papers
- Shenzhen UniversityCN21 papers
- Peking UniversityCN19 papers
- City University of Hong KongHK17 papers
- South China Normal UniversityCN15 papers
- Fudan UniversityCN14 papers
- University of Hong KongHK14 papers
- Tsinghua UniversityCN13 papers
24 papers · 2 filters
Optimizing Quantum Transformation Matrices: A Block Decomposition Approach for Efficient Gate Reduction
Lai Kin Man, Xin Wang
This paper introduces an algorithm designed to approximate quantum transformation matrix with a restricted number of gates by using the block decomposition technique. Addressing ch…
Credible-interval-based adaptive Bayesian quantum frequency estimation for entanglement-enhanced atomic clocks
Jungeng Zhou, Jiahao Huang, Jinye Wei +2
Entanglement-enhanced quantum sensors encounter a fundamental trade-off: while entanglement improves precision to the Heisenberg limit, it restricts dynamic range. To address this…
Quantum adiabatic optimization with Rydberg arrays: localization phenomena and encoding strategies
Lisa Bombieri, Zhongda Zeng, Roberto Tricarico +5
Quantum adiabatic optimization seeks to solve combinatorial problems using quantum dynamics, requiring the Hamiltonian of the system to align with the problem of interest. However,…
High-precision pulse calibration of tunable couplers for high-fidelity two-qubit gates in superconducting quantum processors
Tian-Ming Li, Jia-Chi Zhang, Bing-Jie Chen +23
For superconducting quantum processors, stable high-fidelity two-qubit operations depend on precise flux control of the tunable coupler. However, the pulse distortion poses a signi…
Self-Consistent Determination of Single-Impurity Anderson Model Using Hybrid Quantum-Classical Approach on a Spin Quantum Simulator
Xinfang Nie, Xuanran Zhu, Yu-ang Fan +9
The accurate determination of the electronic structure of strongly correlated materials using first principle methods is of paramount importance in condensed matter physics, comput…
Experimental Realization of Self-Contained Quantum Refrigeration
Keyi Huang, Cheng Xi, Xinyue Long +7
A fundamental challenge in quantum thermodynamics is the exploration of inherent dimensional constraints in thermodynamic machines. In the context of two-level systems, the most co…
Maximal device-independent randomness in every dimension
Máté Farkas, Jurij Volčič, Sigurd A. L. Storgaard +2
Random numbers are used in a wide range of sciences. In many applications, generating unpredictable private random numbers is indispensable. Device-independent quantum random numbe…
Certifying Quantum Temporal Correlation via Randomized Measurements: Theory and Experiment
Hongfeng Liu, Zhenhuan Liu, Shu Chen +3
We consider the certification of temporal quantum correlations using the pseudo-density matrix (PDM), an extension of the density matrix to the time domain, where negative eigenval…
Efficient Large-Scale Quantum Optimization via Counterdiabatic Ansatz
Jie Liu, Xin Wang
Quantum Approximate Optimization Algorithm (QAOA) is one of the fundamental variational quantum algorithms, while a version of QAOA that includes counterdiabatic driving, termed Di…
Quantum Metrology via Floquet-Engineered Two-axis Twisting and Turn Dynamics
Jihao Ma, Yi Shen, Jiahao Huang +1
One core of quantum metrology is the utilization of entanglement to enhance measurement precision beyond the standard quantum limit. Here, we utilize the Floquet-engineered two-axi…
Recovering optimal precision in quantum sensing with time domain imperfections
Zi-Shen Li, Xinyue Long, Xiaodong Yang +2
Quantum control plays a crucial role in enhancing precision scaling for quantum sensing. However, most existing protocols require perfect control, even though real-world devices in…
Protecting Quantum Information via Many-Body Dynamical Localization
Ling-Zhi Tang, Dan-Wei Zhang, Hai-Feng Yu +1
Dynamically localized states in quantum many-body systems are fundamentally important in understanding quantum thermalization and have applications in quantum information processin…
Unifying quantum spatial search, state transfer and uniform sampling on graphs: simple and exact
Qingwen Wang, Ying Jiang, Lvzhou Li
This article presents a novel and succinct algorithmic framework via alternating quantum walks, unifying quantum spatial search, state transfer and uniform sampling on a large clas…
Experimental Validation of Enhanced Information Capacity by Quantum Switch in Accordance with Thermodynamic Laws
Cheng Xi, Xiangjing Liu, Hongfeng Liu +6
We experimentally probe the interplay of the quantum switch with the laws of thermodynamics. The quantum switch places two channels in a superposition of orders and may be applied…
Dual-Capability Machine Learning Models for Quantum Hamiltonian Parameter Estimation and Dynamics Prediction
Zheng An, Jiahui Wu, Zidong Lin +3
Recent advancements in quantum hardware and classical computing simulations have significantly enhanced the accessibility of quantum system data, leading to an increased demand for…
Dynamical suppression of many-body non-Hermitian skin effect in Anyonic systems
Yi Qin, Ching Hua Lee, Linhu Li
The non-Hermitian skin effect (NHSE) is a fascinating phenomenon in nonequilibrium systems where eigenstates massively localize at the systems' boundaries, pumping (quasi-)particle…
Distributed Exact Generalized Grover's Algorithm
Xu Zhou, Xusheng Xu, Shenggen Zheng +1
Distributed quantum computation has garnered immense attention in the noisy intermediate-scale quantum (NISQ) era, where each computational node necessitates fewer qubits and quant…
High coherence fluxonium manufactured with a wafer-scale uniformity process
Fei Wang, Kannan Lu, Huijuan Zhan +32
Fluxonium qubits are recognized for their high coherence times and high operation fidelities, attributed to their unique design incorporating a superinductor, which is typically im…
Loss-induced quantum nonreciprocity
Baijun Li, Yunlan Zuo, Le-Man Kuang +2
Attribute to their robustness against loss and external noise, nonreciprocal photonic devices hold great promise for applications in quantum information processing. Recent advancem…
Exploring Hilbert-Space Fragmentation on a Superconducting Processor
Yong-Yi Wang, Yun-Hao Shi, Zheng-Hang Sun +22
Isolated interacting quantum systems generally thermalize, yet there are several examples for the breakdown of ergodicity, such as many-body localization and quantum scars. Recentl…
Distributed quantum architecture search
Haozhen Situ, Zhimin He, Shenggen Zheng +1
Variational quantum algorithms, inspired by neural networks, have become a novel approach in quantum computing. However, designing efficient parameterized quantum circuits remains…
Revisiting fixed-point quantum search: proof of the quasi-Chebyshev lemma
Guanzhong Li, Shiguang Feng, Lvzhou Li
The original Grover's algorithm suffers from the souffle problem, which means that the success probability of quantum search decreases dramatically if the iteration time is too sma…
Entanglement-enhanced quantum metrology: from standard quantum limit to Heisenberg limit
Jiahao Huang, Min Zhuang, Chaohong Lee
Entanglement-enhanced quantum metrology explores the utilization of quantum entanglement to enhance measurement precision. When particles in a probe are prepared into a quantum ent…
Unbounded quantum-classical separation in sample complexity for sphere center finding
Guanzhong Li, Lvzhou Li
Fast quantum algorithms can solve important computational problems more efficiently than classical algorithms. However, little is known about whether quantum computing can speed up…