抄録
We study a sphere-to-sheet transition of a surface model using the grand canonical Monte Carlo simulation technique on dynamically triangulated lattices. This transition is closely connected to a pore formation of liposome and also to the lamellar-to-onion transition. The model is defined on a triangulated sphere with a pore, which is topologically identical with a disk. The perimeter length of the pore is allowed to vary, and consequently we have two different phases at high bending region; one is a spherical phase and the other is a planar phase. We find that these two phases are separated by a first-order transition.
