软约束条件下相互作用膜的模拟
Simulations of Interacting Membranes in the Soft Confinement Regime.
作者信息
Gouliaev Nikolai, Nagle John F
机构信息
Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213.
出版信息
Phys Rev Lett. 1998 Sep 21;81(12):2610-2613. doi: 10.1103/PhysRevLett.81.2610.
Abstract
The liquid crystalline model biomembrane system consisting of a stack of interacting membranes is studied in the realistic soft confinement regime by the newly developed Fourier Monte Carlo simulation technique. In this regime experiment and simulations show that the functional form of the fluctuation pressure is more nearly exponential rather than the power law valid for the hard confinement regime. The simulations provide quantitative improvement over perturbation theory. It is shown that the harmonic theory that is routinely used to interpret x-ray scattering line shapes is valid.
摘要
由相互作用的膜堆叠组成的液晶模型生物膜系统，通过新开发的傅里叶蒙特卡罗模拟技术，在实际的软约束条件下进行了研究。在这种条件下，实验和模拟表明，涨落压力的函数形式更接近指数形式，而不是硬约束条件下有效的幂律形式。模拟结果在定量上比微扰理论有所改进。结果表明，常用于解释X射线散射线形的谐波理论是有效的。
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