Entanglement properties of GHZ and W superposition state and its decayed states*-Reference-Cited by-同舟云学术

Entanglement properties of GHZ and W superposition state and its decayed states*

Published:2021-05-01 Issue:6 Volume:30 Page:060301
ISSN:1674-1056
Container-title:Chinese Physics B
language:
Short-container-title:Chinese Phys. B

Author:

Jin Xin-Feng,Jiang Li-Zhen,Chen Xiao-Yu

Abstract

We use the generalized Wootters formula, the positive partial transpose (PPT) criterion and the matched entanglement witness, to detect entanglement of three-qubit GHZ and W superposition state and its decayed states. It shows that the results of the generalized Wootters formula in the part near the W state are tight. In the other parts, the PPT criterion is superior to the generalized Wootters formula. Furthermore, we investigate the relationship between entanglement and coherence.

Publisher

IOP Publishing

Subject

General Physics and Astronomy

Link

https://iopscience.iop.org/article/10.1088/1674-1056/abd74e/pdf

Reference30 articles.

1. IEEE Journal on Selected Areas in Communications

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