Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

International Journal of Theoretical Physics

Better Entanglement Witness for Genuine Multipartite Entanglement

Koji Nagata, Tadao Nakamura, Josep Amengual i Batle, Soliman Abdalla, Ahmed Farouk

Published Mar 29, 2018• 1 citation
Publisher
DOI
10.1007/s10773-018-3735-1

Related papers

Device-Independent Witnesses of Genuine Multipartite Entanglement

Jean-Daniel Bancal

Springer theses•Nov 22, 2013•37 citations

Demonstration of genuine multipartite entanglement with device-independent witnesses

Julio T. Barreiro, Jean-Daniel Bancal, Philipp Schindler +5 more

arXiv:1303.2433•Nature Physics•Aug 2, 2013•81 citations

Experimental verification of Entanglement Witness of Dicke state on IBM QPU

Tomis Prajapati, Harsh Mehta, V. Narayanan

An entanglement witness is necessary to characterize genuine multipartite entan-gled states. We theoretically derive the entanglement witness for the four-qubit Dicke state. A negative expectation value confirms genuine multipartite entanglement. Our witness was experimentally verified on IBM QPU, with and without error mitigation techniques.

Quantum 2.0 Conference and Exhibition•Jan 1, 2025•0 citations

CONSTRUCTING MULTIPARTITE ENTANGLEMENT WITNESSES

Miłosz R. Michalski

QP-PQ, quantum probability and white noise analysis•Jan 1, 2011•0 citations

Quantifying Coherence and Genuine Multipartite Entanglement : A Framework Based on Witness Operators and Frobenius Norm Distance

Mingyu Liu, Xian Shi

Quantifying the entanglement and coherence of quantum systems is a topic of significant theoretical and practical interest. In this paper, we propose a method to evaluate lower bounds for several widely used coherence measures and genuine multipartite entanglement (GME) measures. Our approach, which is resource-efficient and computationally feasible, provides bounds of coherence and GME measures with the help of witnesses by the F-norm. Finally, we present a practical framework for estimating these quantum resources in various physical scenarios.

arXiv:2503.09976•Mar 13, 2025•0 citations

Matched witness for multipartite entanglement

Xiaoyu Chen, Li-zhen Jiang, Zhu‐An Xu

arXiv:1605.08495•Quantum Information Processing•Feb 23, 2017•17 citations
Quantifying the entanglement and coherence of quantum systems is a topic of significant theoretical and practical interest. In this paper, we propose a method to evaluate lower bounds for several widely used coherence measures and genuine multipartite entanglement (GME) measures. Our approach, which is resource-efficient and computationally feasible, provides bounds of coherence and GME measures with the help of witnesses by the F-norm. Finally, we present a practical framework for estimating these quantum resources in various physical scenarios.