Caprez Adam, Barwick Brett, Batelaan Herman
Department of Physics and Astronomy, University of Nebraska-Lincoln, Lincoln Nebraska 68588, USA.
Phys Rev Lett. 2007 Nov 23;99(21):210401. doi: 10.1103/PhysRevLett.99.210401. Epub 2007 Nov 19.
The Aharonov-Bohm (AB) effect is a purely quantum mechanical effect. The original (classified as type-I) AB-phase shift exists in experimental conditions where the electromagnetic fields and forces are zero. It is the absence of forces that makes the AB effect entirely quantum mechanical. Although the AB-phase shift has been demonstrated unambiguously, the absence of forces in type-I AB effects has never been shown. Here, we report the observation of the absence of time delays associated with forces of the magnitude needed to explain the AB-phase shift for a macroscopic system.
阿哈罗诺夫 - 玻姆（AB）效应是一种纯粹的量子力学效应。原始的（归类为I型）AB相移存在于电磁场和力均为零的实验条件中。正是力的缺失使得AB效应完全是量子力学的。尽管AB相移已得到明确证明，但I型AB效应中力的缺失从未被证实过。在此，我们报告了对于一个宏观系统，观察到不存在与解释AB相移所需大小的力相关的时间延迟。
