Sütterlin K R, Wysocki A, Ivlev A V, Räth C, Thomas H M, Rubin-Zuzic M, Goedheer W J, Fortov V E, Lipaev A M, Molotkov V I, Petrov O F, Morfill G E, Löwen H
Max Planck Institute for Extraterrestrial Physics, 85741 Garching, Germany.
Phys Rev Lett. 2009 Feb 27;102(8):085003. doi: 10.1103/PhysRevLett.102.085003. Epub 2009 Feb 25.
The dynamical onset of lane formation is studied in experiments with binary complex plasmas under microgravity conditions. Small microparticles are driven and penetrate into a cloud of big particles, revealing a strong tendency towards lane formation. The observed time-resolved lane-formation process is in good agreement with computer simulations of a binary Yukawa model with Langevin dynamics. The laning is quantified in terms of the anisotropic scaling index, leading to a universal order parameter for driven systems.
在微重力条件下对二元复合等离子体进行的实验中，研究了车道形成的动力学起始过程。小的微粒受到驱动并穿透到大粒子云中，显示出强烈的车道形成趋势。观察到的时间分辨车道形成过程与具有朗之万动力学的二元 Yukawa 模型的计算机模拟结果高度吻合。车道化通过各向异性标度指数进行量化，从而得到驱动系统的通用序参量。
