The entanglement of several graph states

doi:10.1007/s11467-012-0249-9

Front. Phys.

2012, Vol. 7

Issue (4) : 444-448 https://doi.org/10.1007/s11467-012-0249-9

RESEARCH ARTICLE

The entanglement of several graph states

Xiao-Yu Chen (陈小余,

)

College of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou 310018, China

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Abstract

We exactly evaluate the entanglement of a six vertex and a nine vertex graph states which correspond to non “two-colorable” graphs. The upper bound of entanglement for five vertex ring graph state is improved to 2.9275, less than the upper bound determined by local operations and classical communication. An upper bound of entanglement is proposed based on the definition of graph state.

Keywords graph state closest separable state multipartite entanglement

Corresponding Author(s): Xiao-Yu Chen (陈小余),Email:xychen@zjgsu.edu.cn

Issue Date: 01 August 2012

Cite this article:

Xiao-Yu Chen (陈小余). The entanglement of several graph states[J]. Front. Phys. , 2012, 7(4): 444-448.

URL:

https://academic.hep.com.cn/fop/EN/10.1007/s11467-012-0249-9
https://academic.hep.com.cn/fop/EN/Y2012/V7/I4/444

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[1]	Xiao-Yu Chen, Li-Zhen Jiang, Zhu-An Xu. Precise detection of multipartite entanglement in fourqubit Greenberger–Horne–Zeilinger diagonal states[J]. Front. Phys. , 2018, 13(5): 130317-.

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