Gravitational collapse of thick domain walls

TL;DR

This paper presents numerical simulations of the gravitational collapse of a scalar field with a b5 b5^4 potential, comparing results with the thin shell approximation to understand collapse dynamics.

Contribution

It introduces detailed numerical simulations of thick domain wall collapse and compares them with the thin shell approximation, providing insights into gravitational collapse behavior.

Findings

Numerical results show differences from the thin shell approximation.

Collapse dynamics depend on the scalar field potential.

The study enhances understanding of thick domain wall gravitational behavior.

Abstract

Numerical simulations are performed of the gravitational collapse of a scalar field with a \lambda \phi^4 potential. Comparisons are made with the thin shell approximation.