Genuine multiqubit entanglement and controlled teleportation

Zhong-Xiao Man, Yun-Jie Xia, and Nguyen Ba An
Phys. Rev. A 75, 052306 – Published 4 May 2007

Abstract

We construct a genuine (2N+1)-qubit entangled state to perform controlled teleportation of an arbitrary N-qubit state. The constructed state is a complementarity to the genuine 2N-qubit entangled state constructed by Yeo and Chua for N=2 [Phys. Rev. Lett. 96, 060502 (2006)] and by Chen, Zhu, and Guo for any N [Phys. Rev. A 74, 032324 (2006)]. We also quantify the entanglement of the state and classify it with the well-known GHZ and W states by means of the recently proposed generalized global entanglement and the associated auxiliary measures [Phys. Rev. A 74, 022314 (2006)]. Our study is of general importance with respect to exploring and exploiting the genuine multiqubit entanglement.

  • Received 5 January 2007

DOI:https://doi.org/10.1103/PhysRevA.75.052306

©2007 American Physical Society

Authors & Affiliations

Zhong-Xiao Man1, Yun-Jie Xia1, and Nguyen Ba An2,3

  • 1College of Physics and Engineering, Qufu Normal University, Qufu 273165, China
  • 2Institute of Physics and Electronics, 10 Dao Tan, Thu Le, Ba Dinh, Hanoi, Vietnam
  • 3Korea Institute for Advanced Study, 207-43 Cheongryangni 2-dong, Dongdaemun-gu, Seoul 130-722, Korea

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Issue

Vol. 75, Iss. 5 — May 2007

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