Chiral Effects and Cosmic Magnetic Fields

Understand

In the presence of cosmic chiral asymmetry, chiral-vorticity and chiral-magnetic effects can play an important role in the generation and evolution of magnetic fields in the early universe.

• We include these chiral effects in the magnetic field equations and find solutions under simplifying assumptions.
• Our numerical and analytical results show the presence of an attractor solution in which chiral effects produce a strong, narrow, Gaussian peak in the magnetic spectrum and the magnetic field becomes maximally helical.
• The peak in the spectrum shifts to longer length scales and becomes sharper with evolution.