455 citations · 2.4k across the 43 of their papers we have counts for
43 papers
No Cloning of Quantum Ensembles
Zhenyu Du, Siyuan Cheng, Qi Zhao +2
Modern quantum physics now enables control of quantum systems at the level of individual trajectories, opening a new frontier that links quantum information theory, quantum many-bo…
Quantification of Entanglement and Coherence with Purity Detection
Ting Zhang, Graeme Smith, John A. Smolin +7
Entanglement and coherence are fundamental properties of quantum systems, promising to power near future quantum technologies, such as quantum computation, quantum communication an…
Towards efficient and generic entanglement detection by machine learning
Jue Xu, Qi Zhao
Detection of entanglement is an indispensable step to practical quantum computation and communication. Compared with the conventional entanglement witness method based on fidelity,…
Quantum differential equation solvers: limitations and fast-forwarding
Dong An, Jin-Peng Liu, Daochen Wang +1
We study the limitations and fast-forwarding of quantum algorithms for linear ordinary differential equation (ODE) systems with a particular focus on non-quantum dynamics, where th…
A scheme to create and verify scalable entanglement in optical lattice
You Zhou, Bo Xiao, Meng-Da Li +4
To achieve scalable quantum information processing, great efforts have been devoted to the creation of large-scale entangled states in various physical systems. Ultracold atom in o…
Unextendible and uncompletable product bases in every bipartition
Fei Shi, Mao-Sheng Li, Xiande Zhang +1
Unextendible product basis is an important object in quantum information theory and features a broad spectrum of applications, ranging bound entangled states, quantum nonlocality w…
Efficient and practical quantum compiler towards multi-qubit systems with deep reinforcement learning
Qiuhao Chen, Yuxuan Du, Qi Zhao +3
Efficient quantum compiling tactics greatly enhance the capability of quantum computers to execute complicated quantum algorithms. Due to its fundamental importance, a plethora of…
Parallel self-testing of EPR pairs under computational assumptions
Honghao Fu, Daochen Wang, Qi Zhao
Self-testing is a fundamental feature of quantum mechanics that allows a classical verifier to force untrusted quantum devices to prepare certain states and perform certain measure…
Hamiltonian simulation with random inputs
Qi Zhao, You Zhou, Alexander F. Shaw +2
The algorithmic error of digital quantum simulations is usually explored in terms of the spectral norm distance between the actual and ideal evolution operators. In practice, this…
Robust Self-Testing of Multiparticle Entanglement
Dian Wu, Qi Zhao, Xue-Mei Gu +10
Quantum self-testing is a device-independent way to certify quantum states and measurements using only the input-output statistics, with minimal assumptions about the quantum devic…
Exploiting anticommutation in Hamiltonian simulation
Qi Zhao, Xiao Yuan
Quantum computing can efficiently simulate Hamiltonian dynamics of many-body quantum physics, a task that is generally intractable with classical computers. The hardness lies at th…
One-shot dynamical resource theory
Xiao Yuan, Pei Zeng, Minbo Gao +1
A fundamental problem in resource theory is to study the manipulation of the resource. Focusing on a general dynamical resource theory of quantum channels, here we consider tasks o…
Quantum teleportation of physical qubits into logical code-spaces
Yi-Han Luo, Ming-Cheng Chen, Manuel Erhard +13
Quantum error correction is an essential tool for reliably performing tasks for processing quantum information on a large scale. However, integration into quantum circuits to achie…
Quantum simulation with hybrid tensor networks
Xiao Yuan, Jinzhao Sun, Junyu Liu +2
Tensor network theory and quantum simulation are respectively the key classical and quantum computing methods in understanding quantum many-body physics. Here, we introduce the fra…
Constructing Multipartite Bell inequalities from stabilizers
Qi Zhao, You Zhou
Bell inequality with self-testing property has played an important role in quantum information field with both fundamental and practical applications. However, it is generally chal…
Simultaneous Certification of Entangled States and Measurements in Bounded Dimensional Semi-Quantum Games
Xingjian Zhang, Qi Zhao
Certification of quantum systems and operations is a central task in quantum information processing. Most current schemes rely on a tomography with fully characterised devices, whi…
Experimental exploration of five-qubit quantum error correcting code with superconducting qubits
Ming Gong, Xiao Yuan, Shiyu Wang +19
Quantum error correction is an essential ingredient for universal quantum computing. Despite tremendous experimental efforts in the study of quantum error correction, to date, ther…
Universal and Operational Benchmarking of Quantum Memories
Xiao Yuan, Yunchao Liu, Qi Zhao +3
Quantum memory -- the capacity to store and faithfully recover unknown quantum states -- is essential for quantum-enhanced technology. There is thus a pressing need for operational…
One-shot Coherence Distillation with Catalysts
Senrui Chen, Xingjian Zhang, You Zhou +1
The resource theory of quantum coherence is an important topic in quantum information science. Standard coherence distillation and dilution problems have been thoroughly studied. I…
Detecting multipartite entanglement structure with minimal resources
You Zhou, Qi Zhao, Xiao Yuan +1
Recently, there are tremendous developments on the number of controllable qubits in several quantum computing systems. For these implementations, it is crucial to determine the ent…
Efficient and robust detection of multipartite Greenberger-Horne-Zeilinger-like states
Qi Zhao, Gerui Wang, Xiao Yuan +1
Entanglement is a key resource for quantum information processing. A widely used tool for detecting entanglement is entanglement witness, where the measurement of the witness opera…
Experimental Realization of Device-Independent Quantum Randomness Expansion
Ming-Han Li, Xingjian Zhang, Wen-Zhao Liu +12
Randomness expansion where one generates a longer sequence of random numbers from a short one is viable in quantum mechanics but not allowed classically. Device-independent quantum…
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…
Theory of variational quantum simulation
Xiao Yuan, Suguru Endo, Qi Zhao +2
The variational method is a versatile tool for classical simulation of a variety of quantum systems. Great efforts have recently been devoted to its extension to quantum computing…