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arXiv 1806.02409quant-phphysics.atom-ph
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粒子在自由降落中的衍射

Diffraction of particles in free fall

D. Condado, J. L. Díaz-Cruz, A. Rosado, E. Sadurní

摘要:

研究了量子粒子束通过衍射屏的问题。当势用线性函数近似时,得到了单缝和双缝的解。结果发现,由此产生的图案依赖于一个准时间$τ$给定的一个函数的坐标沿传播轴在一个经典的组合$z_0-t^2 F/m$,而沿横轴的衍射效应完全是由于$m/\hbar$。的精度,可以测试的等效原理的后果进行了讨论。提出了用超冷中子、玻色-爱因斯坦凝聚体和分子束实现。

英文摘要:

The problem of a beam of quantum particles falling through a diffractive screen is studied. The solutions for single and double slits are obtained explicitly when the potential is approximated by a linear function. It is found that the resulting patterns depend on a quasi-time $τ$ given by a function of the coordinate along the propagation axis in a classical combination $z_0-t^2 F/m$, while the diffraction effects along transverse axes are due solely to $m/\hbar$. The consequences on the precision at which the equivalence principle can be tested are discussed. Realizations with ultra cold neutrons, Bose-Einstein condensates and molecular beams are proposed.

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。

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