24 citations · 54 across the 9 of their papers we have counts for
9 papers
Relativistic Chiral MHD with application to the early Universe
Deepen Garg, Jennifer Schober
We present a systematic derivation of the equations of relativistic chiral magnetohydrodynamics (MHD) for a plasma of charged fermions in an expanding universe. Through a combinati…
A charge-flow instability in plasmas with charge fluctuations
Deepen Garg, Jennifer Schober
We present a linear instability in magnetized plasmas with charge fluctuations. It is driven by an electric current proportional to the charge chemical potential and the bulk v…
Are magnetic fields in cosmic voids primordial?
Deepen Garg, Ruth Durrer, Jennifer Schober
The nature of magnetic fields in the voids of the large-scale structure of the Universe has been a multifaceted open puzzle for decades. On one hand, their origin is not clear with…
Scalar perturbations from inflation in the presence of gauge fields
R. Durrer, R. von Eckardstein, Deepen Garg +3
We study how Abelian-gauge-field production during inflation affects scalar perturbations in the case when the gauge field interacts with the inflaton directly (by means of generic…
Self-consistent interaction of linear gravitational and electromagnetic waves in non-magnetized plasma
Deepen Garg, I. Y. Dodin
This paper explores the hybridization of linear metric perturbations with linear electromagnetic (EM) perturbations in non-magnetized plasma for a general background metric. The lo…
Gravitational wave modes in matter
Deepen Garg, I. Y. Dodin
A general linear gauge-invariant equation for dispersive gravitational waves (GWs) propagating in matter is derived. This equation describes, on the same footing, both the usual te…
Gauge-invariant gravitational waves in matter beyond linearized gravity
Deepen Garg, I. Y. Dodin
Modeling the propagation of gravitational waves (GWs) through matter is complicated by the gauge freedom of linearized gravity in that once nonlinearities are taken into considerat…
Gauge invariants of linearized gravity with a general background metric
Deepen Garg, I. Y. Dodin
In linearized gravity with distributed matter, the background metric has no generic symmetries, and decomposition of the metric perturbation into global normal modes is generally i…
Average nonlinear dynamics of particles in gravitational pulses: effective Hamiltonian, secular acceleration, and gravitational susceptibility
Deepen Garg, I. Y. Dodin
Particles interacting with a prescribed quasimonochromatic gravitational wave (GW) exhibit secular (average) nonlinear dynamics that can be described by Hamilton's equations. We de…