弱测量中反作用实验的重新解释
量子物理
2013-10-30 v4
摘要
重新审视了文献[M. Iinuma et al., New J. Phys. vol.13 (2011), 033041]中关于弱测量反作用实验的解释。我们沿着Aharonov、Albert和Vaidman提出的弱测量原始方案,给出了该实验的两种不同但本质等价的解释。为此,我们引入了扩展弱值的概念,它不仅与系统的状态相关,还与测量设备的状态相关。我们还评估了该实验中的涨落,发现对于作为初始态固定的偏振角,存在一个最优测量强度,在该强度下测量结果的涨落消失。讨论了该评估与实验结果的一致性。
引用
@article{arxiv.1303.1903,
title = {Re-interpretations of an experiment on the back-action in a weak measurement},
author = {Kouji Nakamura and Masataka Iinuma},
journal= {arXiv preprint arXiv:1303.1903},
year = {2013}
}
备注
14 pages, 1 figure (v1); 8 pages, 1 figure, the style is changed. minor revision of Introduction, Summary and Discussion (v2); minor revision of Summary and discussions (v3); Minor revision of introduction and summary and discussion. Typos are corrected. Accepted for publication to Physical Review A