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International Journal of Theoretical Physics

, Volume 55, Issue 4, pp 2237–2246 | Cite as

One-way Quantum Deficit and Decoherence for Two-qubit X States

  • Biao-Liang YeEmail author
  • Yao-Kun Wang
  • Shao-Ming Fei
Article

Abstract

We study one-way quantum deficit of two-qubit X states systematically from analytical derivations. An effective approach to compute one-way quantum deficit of two-qubit X states has been provided. Analytical results are presented as for detailed examples. Moreover, we demonstrate the decoherence of one-way quantum deficit under phase damping channel.

Keywords

One-way quantum deficit Two-qubit X states Decoherence 

Notes

Acknowledgments

We thank the anonymous referee for the useful suggestions and valuable comments. This work is supported by the NSFC under number 11275131.

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.School of Mathematical SciencesCapital Normal UniversityBeijingChina
  2. 2.Institute of PhysicsChinese Academy of SciencesBeijingChina
  3. 3.College of MathematicsTonghua Normal UniversityTonghuaChina
  4. 4.Max-Planck-Institute for Mathematics in the SciencesLeipzigGermany

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