Evolution of Thick Walls in Curved Spacetimes
arXiv:gr-qc/0602063 · doi:10.1088/0264-9381/23/20/014
Abstract
We generalize our previous thick shell formalism to incorporate any codimension-1 thick wall with a peculiar velocity and proper thickness bounded by arbitrary spacetimes. Within this new formulation we obtain the equation of motion of a spherically symmetric dust thick shell immersed in vacuum as well as in Friedmann-Robertson-Walker spacetimes.
8 pages, 1 figure