Dynamical Collapse of Charged Scalar Field in Phantom Gravity

TL;DR

This paper explores the dynamical collapse of charged scalar fields within phantom gravity theories, analyzing horizon formation and singularities, and comparing effects of different phantom fields on spacetime evolution.

Contribution

It introduces a detailed study of collapse dynamics in Einstein-Maxwell-dilaton theory with phantom fields, including simplified models with only phantom Maxwell or scalar fields.

Findings

Formation of horizons and singularities during collapse

Influence of phantom fields on spacetime structure

Differences between combined and separate phantom field collapses

Abstract

We investigated the problem of the dynamical collapse of a self-gravitating complex charged scalar field in Einstein-Maxwell-dilaton theory with a phantom copuling for the adequate fields in the system under consideration. We also considered two simplifications of it, i.e., the separate collapses of phantom Maxwell and phantom scalar fields under the influence of Einstein gravity. One starts with the regular spacetime and leads the evolution through the formation of the horizons and the final singularity. We discuss the structures of spacetimes emerging in the process of the dynamical collapse and comment on the role of the considered fields in its course.