Fun videos. I think the following is the mentioned paper, but unfortunately, it's paywalled. http://scitation.aip.org/content/aip/journal/pof2/26/4/10.1063/1.

Fun videos. I think the following is the mentioned paper, but unfortunately, it's paywalled. http://scitation.aip.org/content/aip/journal/pof2/26/4/10.1063/1.4870650;jsessionid=g3bhosql2jjo9.x-aip-live-03 http://scitation.aip.org/content/aip/journal/pof2/26/4/10.10...