285 citations · 1.2k across the 40 of their papers we have counts for
40 papers
A Metropolitan-scale Multiplexed Quantum Repeater with Bell Nonlocality
Tian-Xiang Zhu, Chao Zhang, Zhong-Wen Ou +7
Quantum repeaters can overcome exponential photon loss in optical fibers, enabling heralded entanglement between distant quantum memories. The definitive benchmark for this entangl…
Observation of Genuine High-dimensional Multi-partite Non-locality in Entangled Photon States
Xiao-Min Hu, Cen-Xiao Huang, Nicola d'Alessandro +10
Quantum information science has leaped forward with the exploration of high-dimensional quantum systems, offering greater potential than traditional qubits in quantum communication…
Experimental Catalytic Amplification of Asymmetry
Chao Zhang, Xiao-Min Hu, Feng Ding +6
The manipulation and transformation of quantum resources are key parts of quantum mechanics. Among them, asymmetry is one of the most useful operational resources, which is widely…
Randomness versus Nonlocality in Multi-input and Multi-output Quantum Scenario
Chao Zhang, Yi Li, Xiao-Min Hu +7
Device-independent randomness certification based on Bell nonlocality does not require any assumptions about the devices and therefore provides adequate security. Great effort has…
Higher-dimensional symmetric informationally complete measurement via programmable photonic integrated optics
Lan-Tian Feng, Xiao-Min Hu, Ming Zhang +11
Symmetric informationally complete measurements are both important building blocks in many quantum information protocols and the seminal example of a generalised, non-orthogonal, q…
Experimental verification of the steering ellipsoid zoo via two-qubit states
Kai Xu, Lijun Liu, Ning-Ning Wang +6
Quantum steering ellipsoid visualizes the set of all qubit states that can be steered by measuring on another correlated qubit in the Bloch picture. Together with local reduced sta…
Experimental verification of bound and multiparticle entanglement with the randomized measurement toolbox
Chao Zhang, Yuan-Yuan Zhao, Nikolai Wyderka +10
In recent years, analysis methods for quantum states based on randomized measurements have been investigated extensively. Still, in the experimental implementations these methods w…
Nonlocal photonic quantum gates over 7.0 km
Xiao Liu, Xiao-Min Hu, Tian-Xiang Zhu +8
Quantum networks provide a prospective paradigm to connect separated quantum nodes, which relies on the distribution of long-distance entanglement and active feedforward control of…
A Variational Approach to Unique Determinedness in Pure-state Tomography
Chao Zhang, Xuanran Zhu, Bei Zeng
In pure-state tomography, the concept of unique determinedness (UD) -- the ability to uniquely determine pure states from measurement results -- is crucial. This study presents a n…
Experimental demonstration of quantum cooling engine powered by entangled measurement
Ning-Ning Wang, Huan Cao, Chao Zhang +5
Traditional refrigeration is driven either by external force or an information-feedback mechanism. Surprisingly, the quantum measurement and collapse, which are generally detriment…
Certification of non-classicality in all links of a photonic star network without assuming quantum mechanics
Ning-Ning Wang, Alejandro Pozas-Kerstjens, Chao Zhang +6
Networks composed of independent sources of entangled particles that connect distant users are a rapidly developing quantum technology and an increasingly promising test-bed for fu…
Detecting Entanglement by Pure Bosonic Extension
Xuanran Zhu, Chao Zhang, Chenfeng Cao +3
In the realm of quantum information theory, the detection and quantification of quantum entanglement stand as paramount tasks. The relative entropy of entanglement (REE) serves as…
Experimental beating the standard quantum limit under non-markovian dephasing environment
Huan Cao, Chao Zhang, Yun-Feng Huang +4
Entanglement enhanced quantum metrology has been well investigated for beating the standard quantum limit (SQL). However, the metrological advantage of entangled states becomes muc…
Experimental implementation of Hardy-like quantum pigeonhole paradoxes
Shihao Ru, Cen-Xiao Huang, Xiao-Min Hu +7
We present the general Hardy-like quantum pigeonhole paradoxes for \textit{n}-particle states, and find that each of such paradoxes can be simply associated to an un-colorable solu…
Experimental Examination of Entanglement Estimates
Songbo Xie, Yuan-Yuan Zhao, Chao Zhang +4
Recently a proper genuine multipartite entanglement (GME) measure has been found for three-qubit pure states [see Xie and Eberly, Phys. Rev. Lett. 127, 040403 (2021)], but capturin…
Entanglement swapping and quantum correlations via Elegant Joint Measurements
Cen-Xiao Huang, Xiao-Min Hu, Yu Guo +8
We use hyper-entanglement to experimentally realize deterministic entanglement swapping based on quantum Elegant Joint Measurements. These are joint projections of two qubits onto…
Experimental Demonstration that No Tripartite-Nonlocal Causal Theory Explains Nature's Correlations
Huan Cao, Marc-Olivier Renou, Chao Zhang +7
Quantum theory predicts the existence of genuinely tripartite-entangled states, which cannot be obtained from local operations over any bipartite entangled states and unlimited sha…
Semi-device-independent certification of indefinite causal order in a photonic quantum switch
Huan Cao, Jessica Bavaresco, Ning-Ning Wang +7
We report an experimental certification of indefinite causal order that relies only on the characterization of the operations of a single party. We do so in the semi-device-indepen…
Certification of Genuine Multipartite Entanglement with General and Robust Device-independent Witnesses
Chao Zhang, Wen-Hao Zhang, Pavel Sekatski +12
Genuine multipartite entanglement represents the strongest type of entanglement, which is an essential resource for quantum information processing. Standard methods to detect genui…
Long-distance entanglement purification for quantum communication
Xiao-Min Hu, Cen-Xiao Huang, Yu-Bo Sheng +8
High-quality long-distance entanglement is essential for both quantum communication and scalable quantum networks. Entanglement purification is to distill high-quality entanglement…
Quantum simulation of indefinite causal order induced quantum refrigeration
Huan Cao, Ning-ning Wang, Zhih-Ahn Jia +6
In the classical world, physical events always happen in a fixed causal order. However, it was recently revealed that quantum mechanics allows events to occur with indefinite causa…
Pathways for entanglement based quantum communication in the face of high noise
Xiao-Min Hu, Chao Zhang, Yu Guo +10
Entanglement based quantum communication offers an increased level of security in practical secret shared key distribution. One of the fundamental principles enabling this security…
Experimental Entanglement Quantification for Unknown Quantum States in a Semi-Device-Independent Manner
Yu Guo, Lijinzhi Lin, Huan Cao +9
Using the concept of non-degenerate Bell inequality, we show that quantum entanglement, the critical resource for various quantum information processing tasks, can be quantified fo…
Simulating noisy variational quantum eigensolver with local noise models
Jinfeng Zeng, Zipeng Wu, Chenfeng Cao +4
Variational quantum eigensolver (VQE) is promising to show quantum advantage on near-term noisy-intermediate-scale quantum (NISQ) computers. One central problem of VQE is the effec…