arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1104.2096quant-ph
收藏

高维系统联合局部化与联合可测性的不确定关系

Uncertainty Relations for Joint Localizability and Joint Measurability in Finite-Dimensional Systems

Takayuki Miyadera

摘要:

两个数量量化的不确定性关系进行检查。在J.Math.Phys. 48,082103(2007)中,Busch和Pearson通过引入总宽度和误差条宽度研究了对位置和动量的联合定位性和联合测量的限制。在本文中,我们展示了有限维系统中这些量之间的简单关系。我们的结果表明,如果联合局部化有界,则有可能得到类似的联合可测界。对于有限维系统,一对一般的投影值测度的不确定性关系得到的副产品。

英文摘要:

Two quantities quantifying uncertainty relations are examined. In J.Math.Phys. 48, 082103 (2007), Busch and Pearson investigated the limitation on joint localizability and joint measurement of position and momentum by introducing overall width and error bar width. In this paper, we show a simple relationship between these quantities for finite-dimensional systems. Our result indicates that if there is a bound on joint localizability, it is possible to obtain a similar bound on joint measurability. For finite-dimensional systems, uncertainty relations for a pair of general projection-valued measures are obtained as by-products.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑