Interactions of cosmological gravitational waves and magnetic fields
arXiv:0809.1383 · doi:10.1103/PhysRevD.79.024021
Abstract
The energy momentum tensor of a magnetic field always contains a spin-2 component in its anisotropic stress and therefore generates gravitational waves. It has been argued in the literature (Caprini & Durrer \cite{CD}) that this gravitational wave production can be very strong and that back-reaction cannot be neglected. On the other hand, a gravitational wave background does affect the evolution of magnetic fields. It has also been argued (Tsagas et al. \cite{Tsagas:2001ak},\cite{Tsagas:2005ki}) that this can lead to very strong amplification of a primordial magnetic field. In this paper we revisit these claims and study back reaction to second order.
Added references, accepted for publication in PRD
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Cited by in corpus (7)
- Primordial magnetic fields and gravitational baryogenesis in nonlinear electrodynamics
- Gravito-magnetic amplification in cosmology
- Interaction between gravitational waves and plasma waves in the Vlasov description
- Nonlinear electrodynamics and CMB polarization
- On the Interaction Between Electromagnetic, Gravitational, and Plasma Related Perturbations on LRS Class II Spacetimes
- Cosmic Electromagnetic Fields due to Perturbations in the Gravitational Field
- A numerical study of primordial magnetic field amplification by inflation-produced gravitational waves