Speaker
Description
In the standard model of particle physics, the chiral anomaly can occur in relativistic plasmas and plays an important role in the early Universe, proto-neutron stars, heavy-ion collisions, and quantum materials. It gives rise to a chiral magnetic effect if the number densities of left- and right-handed electrically charged fermions are
unequal. At high energies, the dynamics of a plasma with charged fermions can be described in terms of chiral magnetohydrodynamics.
We show that a chiral magnetic effect can result just from spatial fluctuations of the chemical potential, causing a chiral dynamo instability, magnetically driven turbulence, and ultimately a
generation of large-scale magnetic field through the magnetic alpha effect. This have consequences for the dynamics of certain high-energy plasmas, such as the early Universe. We discuss how the chiral magnetic effect can be a source for gravitational waves.
Authors: I. Rogachevskii , J. Schober, A. Brandenburg
