Neutrino-electron magnetohydrodynamics in an expanding Universe
arXiv:2106.14892 · doi:10.1103/PhysRevD.104.123013
Abstract
We derive a new model for neutrino-plasma interactions in an expanding universe that incorporates the collective effects of the neutrinos on the plasma constituents. We start from the kinetic description of a multi-species plasma in the flat Friedmann-Robertson-Walker metric, where the particles are coupled to neutrinos through the charged- and neutral-current forms of the weak interaction. We then derive the fluid equations and specialize our model to (a) the lepton epoch, where we consider a pair electron-positron plasma interacting with electron (anti-)neutrinos, and (b) after the electron-positron annihilation, where we model an electron-proton plasma and take the limit of slow ions and inertia-less electrons to obtain a set of neutrino-electron magnetohydrodynamics (NEMHD) equations. In both models, the dynamics of the plasma is affected by the neutrino motion through a ponderomotive force and, as a result, new terms appear in the induction equation that can act as a source for magnetic field generation in the early universe. A brief discussion on the possible applications of our model is proposed.
arXiv comment12 pages, 1 figure, submitted to Physical Review D; typos corrected, references added, added discussion on primordial magnetogenesis, accepted for publication in Physical Review D
References in corpus (30)
- The order of the quantum chromodynamics transition predicted by the standard model of particle physics
- Magnetic Fields in the Early Universe
- Cosmological Magnetic Fields: Their Generation, Evolution and Observation
- Cosmological bounds on neutrino degeneracy improved by flavor oscillations
- The Magnetized Universe
- The Evolution of Cosmic Magnetic Fields: From the Very Early Universe, to Recombination, to the Present
- Large-scale magnetic fields from hydromagnetic turbulence in the very early universe
- Hadronic fluctuations at the QCD phase transition
- Fluctuations and correlations in high temperature QCD
- Primordial Magnetic Fields from Cosmological First Order Phase Transitions
- Relieving the Hubble tension with primordial magnetic fields
- Neutrinos And Big Bang Nucleosynthesis
- Primordial Magnetic Fields
- Stringent Limit on Primordial Magnetic Fields from the Cosmic Microwave Background Radiation
- Magnetohydrodynamics of the Early Universe and the Evolution of Primordial Magnetic Fields
- Chiral transport of neutrinos in supernovae: Neutrino-induced fluid helicity and helical plasma instability
- Cosmological implications of a Relic Neutrino Asymmetry
- Neutrino Emission from Supernovae
- Quark number susceptibilities at high temperatures
- Primordial Magnetic Field Limits from Cosmic Microwave Background Bispectrum of Magnetic Passive Scalar Modes
- Instability of magnetic fields in electroweak plasma driven by neutrino asymmetries
- Generation of Cosmic Magnetic Fields and Gravitational Waves at Neutrino Decoupling
- Large-scale magnetic field generation by alpha-effect driven by collective neutrino-plasma interaction
- Ponderomotive force of quasi-particles in a plasma
- Efficient highly-subsonic turbulent dynamo and growth of primordial magnetic fields
- Magnetic field amplification by the small-scale dynamo in the early Universe
- Magnetic Field Generation from Self-Consistent Collective Neutrino-Plasma Interactions
- Axion driven cosmic magneto-genesis during the QCD crossover
- Comment on "Ponderomotive force due to neutrinos"
- Magnetic fields in a hot dense neutrino plasma and the Gravitational Waves