189 citations · 1.2k across the 37 of their papers we have counts for
37 papers
Spectral bounds for the partial transpose
Wei-Jie Jiang, Jing-Tao Qiu, Xiao-Dong Yu
Among the various entanglement measures, the negativity stands out not only for its clear physical meaning but also for being directly computable from the spectrum of the partial t…
Scalable Certification of Entanglement in Quantum Networks
Jing-Tao Qiu, D. M. Tong, Xiao-Dong Yu
Quantum networks form the backbone of long-distance quantum information processing. Genuine multipartite entanglement (GME) serves as a key indicator of network performance and ove…
Complete Hierarchies for the Geometric Measure of Entanglement
Lisa T. Weinbrenner, Albert Rico, Kenneth Goodenough +2
In quantum physics, multiparticle systems are described by quantum states acting on tensor products of Hilbert spaces. This product structure leads to the distinction between produ…
Virtual Cloning of Quantum States
Zhi-Hao Bi, Jing-Tao Qiu, Xiao-Dong Yu
The inherent limitations of physical processes prevent the copying of arbitrary quantum states. Furthermore, even if we only aim to clone two distinct quantum states, it remains im…
Superactivation and Incompressibility of Genuine Multipartite Entanglement
Lisa T. Weinbrenner, Klára Baksová, Sophia Denker +4
Quantum correlations in the form of entanglement, quantum steering or Bell nonlocality are resources for various information-processing tasks, but their detailed quantification and…
Protecting entanglement witnesses with randomized measurements
Jing-Tao Qiu, Wei-Jie Jiang, Xiao-Dong Yu
Entanglement is one of the most prominent features of quantum mechanics and serves as an essential resource in quantum information science. Therefore, the certification of entangle…
Evolution Operator Can Always be Separated into the Product of Holonomy and Dynamic Operators
Xiao-Dong Yu, D. M. Tong
The geometric phase is a fundamental quantity characterizing the holonomic feature of quantum systems. It is well known that the evolution operator of a quantum system undergoing a…
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…
Characterizing high-dimensional quantum contextuality
Xiao-Dong Yu, Isadora Veeren, Otfried Gühne
As a phenomenon encompassing measurement incompatibility and Bell nonlocality, quantum contextuality is not only central to our understanding of quantum mechanics, but also an esse…
Complete characterization of quantum correlations by randomized measurements
Nikolai Wyderka, Andreas Ketterer, Satoya Imai +5
The fact that quantum mechanics predicts stronger correlations than classical physics is an essential cornerstone of quantum information processing. Indeed, these quantum correlati…
Certifying Quantum Separability with Adaptive Polytopes
Ties-A. Ohst, Xiao-Dong Yu, Otfried Gühne +1
The concept of entanglement and separability of quantum states is relevant for several fields in physics. Still, there is a lack of effective operational methods to characterise th…
Statistical Methods for Quantum State Verification and Fidelity Estimation
Xiao-Dong Yu, Jiangwei Shang, Otfried Gühne
The efficient and reliable certification of quantum states is essential for various quantum information processing tasks as well as for the general progress on the implementation o…
Optimal Entanglement Certification from Moments of the Partial Transpose
Xiao-Dong Yu, Satoya Imai, Otfried Gühne
For the certification and benchmarking of medium-size quantum devices efficient methods to characterize entanglement are needed. In this context, it has been shown that locally ran…
Exploring the relationship between the faithfulness and entanglement of two qubits
Gabriele Riccardi, Daniel E. Jones, Xiao-Dong Yu +2
A conceptually simple and experimentally prevalent class of entanglement witnesses, known as fidelity witnesses, detect entanglement via a state's fidelity with a pure reference st…
Quantum-Inspired Hierarchy for Rank-Constrained Optimization
Xiao-Dong Yu, Timo Simnacher, H. Chau Nguyen +1
Many problems in information theory can be reduced to optimizations over matrices, where the rank of the matrices is constrained. We establish a link between rank-constrained optim…
State-independent quantum contextuality with projectors of nonunit rank
Zhen-Peng Xu, Xiao-Dong Yu, Matthias Kleinmann
Virtually all of the analysis of quantum contextuality is restricted to the case where events are represented by rank-one projectors. This restriction is arbitrary and not motivate…
Geometry of faithful entanglement
Otfried Gühne, Yuanyuan Mao, Xiao-Dong Yu
A typical concept in quantum state analysis is based on the idea that states in the vicinity of some pure entangled state share the same properties; implying that states with a hig…
A complete hierarchy for the pure state marginal problem in quantum mechanics
Xiao-Dong Yu, Timo Simnacher, Nikolai Wyderka +2
Clarifying the relation between the whole and its parts is crucial for many problems in science. In quantum mechanics, this question manifests itself in the quantum marginal proble…
Characterizing Quantum Networks: Insights from Coherence Theory
Tristan Kraft, Cornelia Spee, Xiao-Dong Yu +1
Networks based on entangled quantum systems enable interesting applications in quantum information processing and the understanding of the resulting quantum correlations is essenti…
Efficient verification of quantum processes
Ye-Chao Liu, Jiangwei Shang, Xiao-Dong Yu +1
Quantum processes, such as quantum circuits, quantum memories, and quantum channels, are essential ingredients in almost all quantum information processing tasks. However, the char…
Topological Dynamical Decoupling
Jiang Zhang, Xiao-Dong Yu, Gui-Lu Long +1
We show that topological equivalence classes of circles in a two-dimensional square lattice can be used to design dynamical decoupling procedures to protect qubits attached on the…
Flag Additivity in Quantum Resource Theories
C. L. Liu, Xiao-Dong Yu, D. M. Tong
Quantum resource theories offer a powerful framework for studying various phenomena in quantum physics. Despite considerable effort has been devoted to developing a unified framewo…
Efficient verification of Dicke states
Ye-Chao Liu, Xiao-Dong Yu, Jiangwei Shang +2
Among various multipartite entangled states, Dicke states stand out because their entanglement is maximally persistent and robust under particle losses. Although much attention has…
Optimal verification of general bipartite pure states
Xiao-Dong Yu, Jiangwei Shang, Otfried Gühne
The efficient and reliable verification of quantum states plays a crucial role in various quantum information processing tasks. We consider the task of verifying entangled states u…