Compact and extended objects from self-interacting phantom fields

TL;DR

This paper explores various localized and extended solutions supported by gravitating, self-interacting phantom fields, including wormholes and cosmic strings, through numerical analysis to identify their key features.

Contribution

It introduces and numerically analyzes new solutions like phantom balls, wormholes, strings, and domain walls supported by phantom fields with negative kinetic energy.

Findings

Numerical solutions for phantom-supported objects

Identification of common features across different configurations

Insights into stability and structure of phantom field solutions

Abstract

In this work we investigate localized and extended objects for gravitating, self-interacting phantom fields. The phantom fields come from two scalar fields with a "wrong sign" (negative) kinetic energy term in the Lagrangian. This study covers several solutions supported by these phantom fields: phantom balls, traversable wormholes, phantom cosmic strings, and "phantom" domain walls. These four systems are solved numerically and we try to draw out general, interesting features in each case.