Tighter sum uncertainty relations via variance and Wigner-Yanase skew information for N incompatible observables
Quantum Physics
2021-11-18 v1
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.
Keywords
Cite
@article{arxiv.2111.09147,
title = {Tighter sum uncertainty relations via variance and Wigner-Yanase skew information for N incompatible observables},
author = {Qing-Hua Zhang and Shao-Ming Fei},
journal= {arXiv preprint arXiv:2111.09147},
year = {2021}
}
Comments
11 pages, 3 figures