Molecular dynamics simulations of tethered membranes with periodic boundary conditions

Abstract

Tethered membranes with periodic boundary conditions are studied using constant temperature-pressure molecular dynamics techniques. Constraint and Nosé thermostating are used in conjunction with Andersen and Cleveland-Wentzcovitch constant pressure algorithms. In contrast to earlier work, it is found that the scaling behavior is consistent with the most accurate previous simulation studies (of tethered vesicles). The Poisson ratio for these networks is determined to be ${\mathrm{\sigma }}_{\mathit{P}}$=-0.15±0.01. The relative efficiency of the various algorithms is also discussed. © 1996 The American Physical Society.