Numerical observation of a tubular phase in anisotropic membranes

被引:41
作者
Bowick, M [1 ]
Falcioni, M [1 ]
Thorleifsson, G [1 ]
机构
[1] UNIV BIELEFELD,FAK PHYS,D-33615 BIELEFELD,GERMANY
关键词
D O I
10.1103/PhysRevLett.79.885
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We provide the first numerical evidence for the existence of a tubular phase, predicted by Radzihovsky and Toner (RT), for anisotropic tethered membranes without self-avoidance. Incorporating anisotropy into the bending rigidity of a simple model of a tethered membrane with free boundary conditions, we show that the model indeed has two phase transitions corresponding to the flat-to-tubular and tubular-to-crumpled transitions. For the tubular phase we measure the Flory exponent nu(F) and the roughness exponent zeta. We find nu(F) = 0.305(14) and zeta = 0.895(60), which are in reasonable agreement with the theoretical predictions of RT; nu(F) = 1/4 and zeta = 1.
引用
收藏
页码:885 / 888
页数:4
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