1202.5441 (Jan Stecki)

Simulated bilayer from floppy to hole and topological fluctuations    [PDF]

Jan Stecki

Simulations of a bilayer in a liquid solvent in the full range of areas from
the floppy to the extended state also show the hole/tunnel spontaneous
formation. Whether this change of topology is preceded by topological
fluctuations of the Gaussian curvature $K(x,y)$ is an open question.
Probability distributions of Gaussian curvature are transformed into those of
the ordered inverse radii; these new shapes show a gradual change along the
isotherm. The model of Max-Planck group with 5 beads is used, amended to
represent amphiphiles in the spirit of the "coarse-grained" or "Martini" force
field.

View original: http://arxiv.org/abs/1202.5441