194 citations · 901 across the 29 of their papers we have counts for
28 papers · 1 filter
Non-commutativity as a Universal Characterization for Enhanced Quantum Metrology
Ningxin Kong, Haojie Wang, Mingsheng Tian +4
A central challenge in quantum metrology is to effectively harness quantum resources to surpass classical precision bounds. Although recent studies suggest that the indefinite caus…
Measurement-Incompatibility Constraints for Maximal Randomness
Tianqi Zheng, Yi Li, Yu Xiang +1
Certifying maximal quantum randomness without assumptions about system dimension remains a pivotal challenge for secure communication and foundational studies. Here, we introduce a…
One-Sided Device-Independent Random Number Generation Through Fiber Channels
Jinfang Zhang, Yi Li, Mengyu Zhao +7
Randomness is an essential resource and plays important roles in various applications ranging from cryptography to simulation of complex systems. Certified randomness from quantum…
Necessary and Sufficient Condition for Randomness Certification from Incompatibility
Yi Li, Yu Xiang, Jordi Tura +1
Quantum randomness can be certified from probabilistic behaviors demonstrating Bell nonlocality or Einstein-Podolsky-Rosen steering, leveraging outcomes from uncharacterized device…
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…
Classifying Multipartite Continuous Variable Entanglement Structures through Data-augmented Neural Networks
Xiaoting Gao, Mingsheng Tian, Feng-Xiao Sun +3
Neural networks have emerged as a promising paradigm for quantum information processing, yet they confront the challenge of generating training datasets with sufficient size and ri…
Graphical Framework for Non-Gaussian Quantum States
Lina Vandré, Boxuan Jing, Yu Xiang +2
We provide a graphical method to describe and analyze non-Gaussian quantum states using a hypergraph framework. These states are pivotal resources for quantum computing, communicat…
Faithful geometric measures for genuine tripartite entanglement
Xiaozhen Ge, Lijun Liu, Yong Wang +4
We present a faithful geometric picture for genuine tripartite entanglement of discrete, continuous, and hybrid quantum systems. We first find that the triangle relation $\mathcal{…
Correlation-pattern-based Continuous-variable Entanglement Detection through Neural Networks
Xiaoting Gao, Mathieu Isoard, Fengxiao Sun +5
Entanglement in continuous-variable non-Gaussian states provides irreplaceable advantages in many quantum information tasks. However, the sheer amount of information in such states…
Certification of non-Gaussian Einstein-Podolsky-Rosen Steering
Mingsheng Tian, Zihang Zou, Da Zhang +5
Non-Gaussian quantum states are a known necessary resource for reaching a quantum advantage and for violating Bell inequalities in continuous variable systems. As one kind of manif…
Randomness Certification from Multipartite Quantum Steering for Arbitrary Dimensional Systems
Yi Li, Yu Xiang, Xiao-Dong Yu +3
Entanglement in bipartite systems has been applied for the generation of secure random numbers, which are playing an important role in cryptography or scientific numerical simulati…
Remote preparation of optical cat states based on Gaussian entanglement
Dongmei Han, Fengxiao Sun, Na Wang +5
Remote state preparation enables one to prepare and manipulate quantum state non-locally. As an essential quantum resource, optical cat state is usually prepared locally by subtrac…
Filtering one-way Einstein-Podolsky-Rosen steering
Ze-Yan Hao, Yan Wang, Jia-Kun Li +8
Einstein-Podolsky-Rosen (EPR) steering, a fundamental concept of quantum nonlocality, describes one observer's capability to remotely affect another distant observer's state by loc…
Physical interpretation of nonlocal quantum correlation through local description of subsystems
Tanumoy Pramanik, Xiaojiong Chen, Yu Xiang +11
Characterization and categorization of quantum correlations are both fundamentally and practically important in quantum information science. Although quantum correlations such as n…
Quantum Steering: Practical Challenges and Perspectives
Yu Xiang, Shuming Cheng, Qihuang Gong +2
Einstein-Rosen-Podolsky (EPR) steering or quantum steering describes the "spooky-action-at-a-distance" that one party is able to remotely alter the states of the other if they shar…
Characterizing Multipartite Non-Gaussian Entanglement for Three-Mode Spontaneous Parametric Down-Conversion Process
Mingsheng Tian, Yu Xiang, Feng-Xiao Sun +2
Very recently, strongly non-Gaussian states have been observed via a direct three-mode spontaneous parametric down-conversion in a superconducting cavity [Phys. Rev. X 10, 011011 (…
Experimental demonstration of remotely creating Wigner negativity via quantum steering
Shuheng Liu, Dongmei Han, Na Wang +7
Non-Gaussian states with Wigner negativity are of particular interest in quantum technology due to their potential applications in quantum computing and quantum metrology. However,…
Experimentally ruling out joint reality based on operational completeness
Qiuxin Zhang, Yu Xiang, Xiaoting Gao +9
Whether the observables of a physical system admit real values is of fundamental importance to a deep understanding of nature. In this work, we report a device-independent experime…
Demonstration that Einstein-Podolsky-Rosen steering requires more than one bit of faster-than-light information transmission
Yu Xiang, Michael D. Mazurek, Joshua C. Bienfang +10
Schrödinger held that a local quantum system has some objectively real quantum state and no other (hidden) properties. He therefore took the Einstein-Podolsky-Rosen (EPR) phenomeno…
Quantification of Wigner Negativity Remotely Generated via Einstein-Podolsky-Rosen Steering
Yu Xiang, Shuheng Liu, Jiajie Guo +4
Wigner negativity, as a well-known indicator of nonclassicality, plays an essential role in quantum computing and simulation using continuous-variable systems. Recently, it has bee…
Deterministic distribution of multipartite entanglement and steering in a quantum network by separable states
Meihong Wang, Yu Xiang, Haijun Kang +6
As two valuable quantum resources, Einstein-Podolsky-Rosen entanglement and steering play important roles in quantum-enhanced communication protocols. Distributing such quantum res…
Versatile Multipartite Einstein-Podolsky-Rosen Steering via a Quantum Frequency Comb
Yin Cai, Yu Xiang, Yang Liu +2
Multipartite Einstein-Podolsky-Rosen steering is an essential resource for quantum communication networks where the reliability of equipment at all of the nodes cannot be fully tru…
Quasi-Fine-Grained Uncertainty Relations
Yunlong Xiao, Yu Xiang, Qiongyi He +1
Nonlocality, which is the key feature of quantum theory, has been linked with the uncertainty principle by fine-grained uncertainty relations, by considering combinations of outcom…
Multipartite Einstein-Podolsky-Rosen steering sharing with separable states
Yu Xiang, Xiaolong Su, Ladislav Mišta +2
Distribution of quantum correlations among remote users is a key procedure underlying many quantum information technologies. Einstein-Podolsky-Rosen steering, which is one kind of…