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arXiv · 2111.09147

Tighter sum uncertainty relations via variance and Wigner-Yanase skew information for N incompatible observables

Qing-Hua Zhang·Shao-Ming Fei
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Abstract

We study the sum uncertainty relations based on variance and skew information for arbitrary finite N quantum mechanical observables. We derive new uncertainty inequalities which improve the exiting results about the related uncertainty relations. Detailed examples are provided to illustrate the advantages of our uncertainty inequalities.

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Qing-Hua Zhang, Shao-Ming Fei. 2021-11-17. Tighter sum uncertainty relations via variance and Wigner-Yanase skew information for N incompatible observables. https://doi.org/10.1007/s11128-021-03332-5

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