JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) ›› 2017, Vol. 52 ›› Issue (8): 43-47.doi: 10.6040/j.issn.1671-9352.0.2017.036

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Some research about Wigner-Yanase-Dyson skew information

WANG Li-li, CHEN Zheng-li*   

  1. School of Mathematics and Information Science, Shaanxi Normal University, Xian 710062, Shaanxi, China
  • Received:2017-02-05 Online:2017-08-20 Published:2017-08-03

Abstract: Based on the study of some properties of the Wigner-Yanase-Dyson skew information and the Wigner-Yanase correlation, the Wigner-Yanase-Dyson skew information is given for different quantum channels. Finally, the concavity with the Wigner-Yanase-Dyson skew information is proven.

Key words: Wigner-Yanase correlation, Wigner-Yanase-Dyson skew information, density operator, quantum channel

CLC Number: 

  • O177.1
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