A New Multipartite Entanglement Measure for Arbitrary <Emphasis Type="Italic">n</Emphasis>-qudit Pure States |
| |
Authors: | Email author" target="_blank">Chao?ZhaoEmail author Guo-wu?Yang Xiao-yu?Li |
| |
Institution: | 1.Big Data Research Center, School of Computer Science and Engineering,University of Electronic Science and Technology of China,Chengdu,China;2.School of Information and Software Engineering,University of Electronic Science and Technology of China,Chengdu,China |
| |
Abstract: | In this paper, we propose a multipartite entanglement measure for arbitrary pure states, which is presented based on reduced density matrices of multi-qudit pure states. We review some multipartite entanglement measures based on density matrices. This is helpful for us to introduce a new good entanglement measure, which is vanishing if and only if a state is separable, invariant under local unitary transformations and non-increasing under local operations assisted by classical communication. We apply our entanglement measure for some explicit examples. It demonstrates that our entanglement measure is practical and convenient for computation. It can also distinguish the relatively high entanglement and the maximal entanglement. In short, our entanglement measure is good at characterizing multipartite entanglement. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|