The influence of strong field vacuum polarization on gravitational-electromagnetic wave interaction

TL;DR

This paper investigates how quantum electrodynamical effects like vacuum polarization influence the interaction between gravitational and electromagnetic waves in strong magnetic fields exceeding the Schwinger limit, revealing significant alterations in energy transfer.

Contribution

It introduces a theoretical framework incorporating QED effects into gravitational-electromagnetic wave interactions in ultra-strong magnetic fields, a novel aspect in this research area.

Findings

QED effects significantly modify energy conversion between waves

Derived equations account for vacuum polarization in strong fields

Results suggest potential observable consequences in extreme astrophysical environments

Abstract

The interaction between gravitational and electromagnetic waves in the presence of a static magnetic field is studied. The field strength of the static field is allowed to surpass the Schwinger critical field, such that the quantum electrodynamical (QED) effects of vacuum polarization and magnetization are significant. Equations governing the interaction are derived and analyzed. It turns out that the energy conversion from gravitational to electromagnetic waves can be significantly altered due to the QED effects. The consequences of our results are discussed.