期刊
QUANTUM INFORMATION PROCESSING
卷 14, 期 6, 页码 2239-2253出版社
SPRINGER
DOI: 10.1007/s11128-015-0950-z
关键词
Renyi entropy; Uncertainty relation; Successive projective measurements
资金
- National Natural Science Foundation of China [11375036, 11175033]
- Xinghai Scholar Cultivation Plan
We investigate the uncertainty principle for two successive projective measurements in terms of R,nyi entropy based on a single quantum system. Our results cover a large family of the entropy (including the Shannon entropy) uncertainty relations with a lower optimal bound. We compare our relation with other formulations of the uncertainty principle in two-spin observables measured on a pure quantum state of qubit. It is shown that the low bound of our uncertainty relation has better tightness.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据