Primordial magnetic fields from cosmological phase transitions

  title={Primordial magnetic fields from cosmological phase transitions},
  author={Daniel Boyanovsky and H{\'e}ctor J. de Vega and Michele Simionato},
We study the generation of large scale primordial magnetic fields by a cosmological phase transition during the radiation dominated era. The setting is a theory of N charged scalar fields coupled to an abelian gauge field, that undergoes a phase transition at a critical temperature much larger than the electroweak scale. The dynamics after the transition features two distinct stages: a spinodal regime dominated by linear long-wavelength instabilities, and a scaling stage in which the non… Expand
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Dynamics of Symmetry Breaking in FRW Cosmologies: Emergence of Scaling
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Self-consistent estimates of magnetic fields from reheating
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Magnetohydrodynamic effects of a first-order cosmological phase transition
The author analyzes the spectrum, amplitude, and evolution of a tangled primeval magnetic field generated by macroscopic dynamo activity arising during a first-order phase transition in the earlyExpand
Static and Dynamic Critical Phenomena at a Second Order QCD Phase Transition
In QCD with two flavors of massless quarks, the chiral phase transition is plausibly in the same universality class as the classical four component Heisenberg antiferromagnet. Therefore,Expand
Resonant amplification of gauge fields in expanding universe
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Magnetic fields from cosmological phase transitions
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Electric charge asymmetry of the Universe and magnetic field generation.
  • Dolgov, Silk
  • Physics, Medicine
  • Physical review. D, Particles and fields
  • 1993
If at an early stage of the evolution of the Universe the gauge symmetry of electromagnetism was spontaneously broken, an electric charge asymmetry would develop and be large enough to seed the observed magnetic fields in galaxies via a protogalactic dynamo. Expand
Nonequilibrium quantum plasmas in scalar QED: Photon production, magnetic and Debye masses, and conductivity
We study the generation of a nonequilibrium plasma in scalar QED with N-charged scalar fields in the cases (a) of a supercooled second order phase transition through spinodal instabilities and (b) ofExpand