The order parameter is defined as an ensemble and time-averaged measure of alignment for each coarse-grained inter-particle pseudobond, with the time-varying θ being the angle between the pseudobond and the bilayer normal.

The order parameter is defined as an ensemble and time-averaged measure of alignment for each coarse-grained inter-particle pseudobond, with the time-varying θ being the angle between the pseudobond and the bilayer normal.