Conversion of Gravitons into Dark Photons in Cosmological Dark Magnetic Fields

TL;DR

This paper investigates how gravitons can convert into dark photons within cosmological dark magnetic fields, potentially enabling new detection methods for high-frequency gravitational waves in the context of atomic dark matter.

Contribution

It introduces the concept of graviton to dark photon conversion in dark magnetic fields, expanding the understanding of gravitational wave interactions in dark matter scenarios.

Findings

Gravitons can effectively convert into dark photons in dark magnetic fields.

Dark magnetic fields are not constrained by cosmic microwave observations.

This conversion could open new avenues for detecting ultra high frequency gravitational waves.

Abstract

It is well known that gravitons can convert into photons, and vice versa, in the presence of cosmological magnetic fields. We study this conversion process in the context of atomic dark matter scenario. In this scenario, we can expect cosmological dark magnetic fields, which are free from the stringent constraint from the cosmic microwave observations. We find that gravitons can effectively convert into dark photons in the presence of cosmological dark magnetic fields. The graviton-dark photon conversion effect may open up a new window for ultra high frequency gravitational waves.