Harris Daniel M, Moukhtar Julien, Fort Emmanuel, Couder Yves, Bush John W M
Department of Mathematics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Phys Rev E Stat Nonlin Soft Matter Phys. 2013 Jul;88(1):011001. doi: 10.1103/PhysRevE.88.011001. Epub 2013 Jul 10.
Bouncing droplets can self-propel laterally along the surface of a vibrated fluid bath by virtue of a resonant interaction with their own wave field. The resulting walking droplets exhibit features reminiscent of microscopic quantum particles. Here we present the results of an experimental investigation of droplets walking in a circular corral. We demonstrate that a coherent wavelike statistical behavior emerges from the complex underlying dynamics and that the probability distribution is prescribed by the Faraday wave mode of the corral. The statistical behavior of the walking droplets is demonstrated to be analogous to that of electrons in quantum corrals.
弹跳的液滴能够凭借与自身波场的共振相互作用,在振动的液池表面横向自行推进。由此产生的行走液滴展现出类似于微观量子粒子的特征。在此,我们展示了对在圆形围栏中行走的液滴进行实验研究的结果。我们证明,从复杂的底层动力学中出现了一种相干的波状统计行为,并且概率分布由围栏的法拉第波模式规定。行走液滴的统计行为被证明类似于量子围栏中电子的统计行为。