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Phys. Rev. A 77, 056302 (2008) [3 pages]

Reply to “Comment on `Stochastic local operations and classical communication invariant and the residual entanglement for n qubits' ”

Dafa Li,1 Xiangrong Li,2 Hongtao Huang,3 and Xinxin Li4
1Department of Mathematical Sciences, Tsinghua University, Beijing 100084 China
2Department of Mathematics, University of California, Irvine, California 92697-3875, USA
3Electrical Engineering and Computer Science Department University of Michigan, Ann Arbor, Michigan 48109, USA
4Department of Computer Science, Wayne State University, Detroit, Michigan 48202, USA

Received 14 February 2008; published 6 May 2008

In D. Li, X. Li, H. Huang, and X. Li [Phys. Rev. A 76, 032304 (2007)], we defined the residual entanglement for odd n qubits. In this reply, we improve the definition by averaging the original residual entanglement with respect to each qubit, which makes the defined quantity invariant under any permutation of all the qubits.

©2008 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevA.77.056302
DOI: 10.1103/PhysRevA.77.056302
PACS: 03.67.Mn; 03.65.Ta; 89.70.-a
  • 03.67.Mn
    Entanglement measures, witnesses, and other characterizations (quantum information)
  • 03.65.Ta
    Foundations of quantum mechanics; measurement theory
  • 89.70.-a
    Information and communication theory
  • YEAR: 2008
KEYWORDS: quantum communication, quantum entanglement

See Also

Comment on “Stochastic local operations and classical communication invariant and the residual entanglement for n qubits”
Xin-Wei Zha, Hai-Yang Song, and Ming-Liang Hu
Phys. Rev. A 77, 056301 (2008)

Stochastic local operations and classical communication invariant and the residual entanglement for n qubits
Dafa Li, Xiangrong Li, Hongtao Huang et al.
Phys. Rev. A 76, 032304 (2007)

REFERENCES (5)

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Related Articles

  1. Comment on “Stochastic local operations and classical communication invariant and the residual entanglement for n qubits”
    Xin-Wei Zha, Hai-Yang Song, and Ming-Liang Hu
    Phys. Rev. A 77, 056301 (2008)
  2. Stochastic local operations and classical communication invariant and the residual entanglement for n qubits
    Dafa Li, Xiangrong Li, Hongtao Huang et al.
    Phys. Rev. A 76, 032304 (2007)


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