• Corpus ID: 248811546

Generalized Wigner-Yanase Skew Information and the Affiliated Inequality

  title={Generalized Wigner-Yanase Skew Information and the Affiliated Inequality},
  author={Ma-Cheng Yang and Congyu Qiao},
A family of skew information quantities is obtained, in which the well-known Wigner-Yanase skew information and quantum Fisher information stand as special cases. A transparent proof of convexity of the generalized skew information is given, implying a simple proof of the Wigner-Yanase-Dyson conjecture. We find in this work an exact skew information inequality for qubit system, which may regard as the information counterpart of the uncertainty relation. A lower bound for generalized skew… 

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