论文标题
运动镜对均匀重力场中量子粒子的自由下落的影响
Effect of a moving mirror on the free fall of a quantum particle in a homogeneous gravitational field
论文作者
论文摘要
我们研究了时间依赖性边界条件对量子弹跳器动力学的影响，量子弹跳器的粒子落在移动镜上的同质重力场中。我们更特别地检查移动镜会修饰掉落粒子整个波功能的性质的方式。我们发现某些效果，例如，击中移动镜的量子粒子可能会明显高于固定镜子时的弹跳，与经典的直觉一致。其他效果，例如，相对相的变化或空间区域任意远距离镜像的当前密度的变化是特异性的。我们进一步讨论如何与当前的实验，特别是与冷中子相关的运动镜产生的效果。
We investigate the effect of time-dependent boundary conditions on the dynamics of a quantum bouncer -- a particle falling in a homogeneous gravitational field on a moving mirror. We examine more particularly the way a moving mirror modifies the properties of the entire wavefunction of a falling particle. We find that some effects, such as the fact that a quantum particle hitting a moving mirror may bounce significantly higher than when the mirror is fixed, are in line with classical intuition. Other effects, such as the change in relative phases or in the current density in spatial regions arbitrarily far from the mirror are specifically quantum. We further discuss how the effects produced by a moving mirror could be observed in link with current experiments, in particular with cold neutrons.
