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Comment on “One-way deficit of two qubit X states”

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Abstract

We improve the recent method of Wang et. al to calculate exactly the one-way information deficit of any X-state. Analytical formulas of the one-way information deficit are given for several nontrivial regions of the parameters.

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Acknowledgments

We thank the referee for the comments which help us improve the manuscript. We are also indebted to Dr. Ming Liu for discussions on the topics. The research is partially supported by Simons Foundation Grant No. 198129 and NSFC Grant Nos. 11271138 and 11531004.

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Authors and Affiliations

  1. Department of Mathematics, North Carolina State University, Raleigh, NC, 27695, USA

    Naihuan Jing

  2. School of Mathematics, South China University of Technology, Guangzhou, 510640, Guangdong, China

    Xia Zhang

  3. College of Mathematics, Tonghua Normal University, Tonghua, 134001, Jilin, China

    Yao-Kun Wang

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  1. Naihuan Jing
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  2. Xia Zhang
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  3. Yao-Kun Wang
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Correspondence to Naihuan Jing.

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Jing, N., Zhang, X. & Wang, YK. Comment on “One-way deficit of two qubit X states”. Quantum Inf Process 14, 4511–4521 (2015). https://doi.org/10.1007/s11128-015-1132-8

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  • DOI: https://doi.org/10.1007/s11128-015-1132-8

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