Real-Valued Observables and Quantum Uncertainty

被引：0

作者：

Stan Gudder

机构：

[1] University of Denver,Department of Mathematics

来源：

International Journal of Theoretical Physics | / 62卷

关键词：

Uncertainty principle; Real-valued observables; Coarse-grain;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We first present a generalization of the Robertson-Heisenberg uncertainty principle. This generalization applies to mixed states and contains a covariance term. For faithful states, we characterize when the uncertainty inequality is an equality. We next present an uncertainty principle version for real-valued observables. Sharp versions and conjugates of real-valued observables are considered. The theory is illustrated with examples of dichotomic observables. We close with a discussion of real-valued coarse graining.

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