Tighter Monogamy Relations for Concurrence and Negativity in Multiqubit Systems-Reference-Cited by-同舟云学术

Tighter Monogamy Relations for Concurrence and Negativity in Multiqubit Systems

Published:2023-02-26 Issue:5 Volume:11 Page:1159
ISSN:2227-7390
Container-title:Mathematics
language:en
Short-container-title:Mathematics

Author:

Tao Yuan-Hong¹^ORCID,Zheng Kai²,Jin Zhi-Xiang³,Fei Shao-Ming⁴⁵^ORCID

Affiliation:

1. School of Science, Zhejiang University of Science and Technology, Hangzhou 310023, China

2. Changzhou College of Information Technology, Changzhou 213164, China

3. School of Computer Science and Technology, Dongguan University of Technology, Dongguan 523808, China

4. School of Mathematical Sciences, Capital Normal University, Beijing 100048, China

5. Max-Planck-Institute for Mathematics in the Sciences, 04103 Leipzig, Germany

Abstract

The entanglement in multipartite quantum system is hard to characterize and quantify, although it has been intensively studied in bipartite systems. The monogamy of entanglement, as a special property of multipartite systems, shows the distribution of entanglement in the system. In this paper, we investigate the monogamy relations for multi-qubit systems. By using two entangled measures, namely the concurrence C and the negativity Nc, we establish tighter monogamy inequalities for their α-th power than those in all the existing ones. We also illustrate the tightness of our results for some classes of quantum states.

Funder

National Natural Science Foundation of China

Beijing Natural Science Foundation

Academician Innovation Platform of Hainan Province

Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology

Publisher

MDPI AG

Subject

General Mathematics,Engineering (miscellaneous),Computer Science (miscellaneous)

Link

https://www.mdpi.com/2227-7390/11/5/1159/pdf

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