Hexagons, kinks, and disorder in oscillated granular layers
Abstract
Experiments on vertically oscillated granular layers in an evacuated container reveal a sequence of well-defined pattern bifurcations as the container acceleration is increased. Period doublings of the layer center of mass motion and a standing wave instability interact to produce hexagons and more complicated patterns composed of distinct spatial domains of different relative phase separated by kinks (phase discontinuities). A simple model displays quantitative agreement with the observed transition sequence.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 1995
- DOI:
- 10.1103/PhysRevLett.75.3838
- arXiv:
- arXiv:patt-sol/9507003
- Bibcode:
- 1995PhRvL..75.3838M
- Keywords:
-
- 47.54.+r;
- 83.10.Ji;
- 83.10.Pp;
- 83.70.Fn;
- Particle dynamics;
- Nonlinear Sciences - Pattern Formation and Solitons
- E-Print:
- 4 pages. The RevTeX file has a macro allowing various styles. The appropriate style is "myprint" which is the default