Self-action in Gravity

TL;DR

This paper reviews how self-force effects in gravity influence particles in various curved backgrounds, considering scalar and vector fields, with implications for black holes, stars, and wormholes.

Contribution

It provides a comprehensive review of self-interaction effects in gravitational fields across different spacetime backgrounds, including new insights into self-force for various fields.

Findings

Self-force persists even for particles at rest in curved spacetime.

Different backgrounds significantly affect self-force behavior.

Scalar and vector fields contribute distinctly to self-interaction.

Abstract

On a particle moving with variable acceleration in the flat space-time affects the self-force due to outgoing radiation. The gravitational fields bring an additional contribution to self-force due to scattering waves on the curved backgrounds. This force is not zero even for a particle at rest. A review of the self-interaction in the gravitational field is presented. We consider the self-force for the particle connected with the vector and scalar fields. Different backgrounds are considered -- black holes, stars, topological defects, and wormholes.