Gravitational waves in the presence of a dynamical four-form

TL;DR

This paper investigates how weak gravitational waves propagate in the presence of a dynamical four-form, providing exact solutions for plane, monochromatic waves to understand their behavior.

Contribution

It introduces a novel analysis of gravitational wave propagation considering a dynamical four-form, deriving exact solutions that were not previously available.

Findings

Exact solutions for plane, monochromatic gravitational waves with a dynamical four-form

Insights into how the four-form influences wave propagation

Foundational work for further studies on gravitational waves in modified theories

Abstract

Propagation of weak gravitational waves, when a dynamical four-form is around, has been investigated. Exact, self-consistent solutions corresponding to plane, monochromatic gravitational waves have been studied.