Wednesday, February 27, 2013

1302.6405 (Ho-Kei Chan)

A hybrid helical structure of hard sphere packing from sequential
deposition
   [PDF]

Ho-Kei Chan
A hybrid helical structure of equal-sized hard spheres in cylindrical confinement was discovered as a 'by-product' of the recently developed sequential deposition approach [Physical Review E 84, 050302(R) (2011)] for constructing the densest possible packings of such systems. Unlike ordinary helical structures that are characterized by a single type of strand (e.g. double-strand for double helix), this novel structure exists as a hybrid of the single- and double-helix with an alternating sequence of single- and double-strands. This article explains how this previously unknown structure can be constructed via the abovementioned sequential deposition approach, which involves manipulating the positions of a few spheres to create a template for the deposition process. The findings show that it is possible to discover new structures through varying the configuration of spheres within the template, where this approach relies on a sensitive dependence of the deposition-generated structures on the template.
View original: http://arxiv.org/abs/1302.6405

No comments:

Post a Comment