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Title: Uncertainty relation of mixed states by means of Wigner-Yanase-Dyson information
Authors: Li, D.
Li, X.
Wang, F.
Huang, H.
Kwek, Leong Chuan
Issue Date: 2009
Citation: Li, D., Li, X., Wang, F., Huang, H., & Kwek, L. C. (2009). Uncertainty relation of mixed states by means of Wigner-Yanase-Dyson information. Physical Review A, 79(5), 052106.
Abstract: The variance of an observable in a quantum state is usually used to describe Heisenberg uncertainty relation. For mixed states, the variance includes quantum and classical uncertainties. By means of the skew information and the decomposition of the variance, a stronger uncertainty relation was presented by Luo [Phys. Rev. A 72, 042110 (2005)]. In this paper, by using Wigner-Yanase-Dyson information which is a generalization of the skew information, we propose a general uncertainty relation of mixed states.
ISSN: 1050-2947 (print)
1094-1622 (online)
Other Identifiers: 10.1103/PhysRevA.79.052106
Appears in Collections:Journal Articles

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