Guelph-Waterloo Physics Institute and Department of Physics and Astronomy, University of Waterloo, Ontario, Canada, N2L 3G1.
Phys Rev Lett. 2012 Feb 3;108(5):057801. doi: 10.1103/PhysRevLett.108.057801. Epub 2012 Jan 30.
Recent studies have suggested that a monolayer of self-avoiding hard rods confined on a spherical surface may display a distribution texture corresponding to splay, tennis-ball, rectangle, or cut-and-rotate splay symmetries. We investigate the system on the basis of a generalized Onsager model which includes both excluded-volume and entropic effects. The numerical solution indicates that the splay state, where on average rods line up in parallel to the longitudinal lines on the spherical surface, is the only stable state.
最近的研究表明，受限在球面上的自回避硬棒单层可能表现出与伸展、网球、矩形或切分和旋转伸展对称性相对应的分布纹理。我们基于包括排斥体积和熵效应的广义 Onsager 模型来研究该系统。数值解表明，伸展状态是唯一稳定的状态，即棒的平均排列与球面上的纵向线平行。
