Chiral anomaly and dynamos from inhomogeneous chemical potential fluctuations

Abstract

In the standard model of particle physics, the chiral anomaly can occur in relativistic plasmas and plays a role in the early Universe, protoneutron stars, heavy-ion collisions, and quantum materials. It gives rise to a magnetic instability if the number densities of left- and right-handed electrically charged fermions are unequal. Using direct numerical simulations, we show this can result just from spatial fluctuations of the chemical potential, causing a chiral dynamo instability, magnetically driven turbulence, and ultimately a large-scale magnetic field through the magnetic alpha effect.

5 pages, 4 figures

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Cited by in corpus (6)

• Chiral Magnetic Effect in Heavy Ion Collisions: The Present and Future
• Analytic solutions for the linearized first-order magnetohydrodynamics and implications for causality and stability
• Large-scale clustering of inertial particles in a rotating, stratified and inhomogeneous turbulence
• Primordial magnetic field from chiral plasma instability with sourcing
• Efficiency of dynamos from an autonomous generation of chiral asymmetry
• Chiral Anomaly Induced Transverse Planar Transport Phenomena in Three Dimensional Spin-Orbit Coupled Metals