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research article
Production of a Chiral Magnetic Anomaly with Emerging Turbulence and Mean-Field Dynamo Action
February 9, 2022
In relativistic magnetized plasmas, asymmetry in the number densities of left-and right-handed fermions, i.e., a nonzero chiral chemical potential mu(5), leads to an electric current along the magnetic field. This causes a chiral dynamo instability for a uniform mu(5), but our simulations reveal a dynamo even for fluctuating mu(5) with zero mean. It produces magnetically dominated turbulence and generates mean magnetic fields via the magnetic alpha effect. Eventually, a universal scale-invariant k(-1) spectrum of mu(5) and a k(-3) magnetic spectrum are formed independently of the initial condition.
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Type
research article
Web of Science ID
WOS:000754677600006
Authors
Publication date
2022-02-09
Publisher
Published in
Volume
128
Issue
6
Article Number
065002
Subjects
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
March 14, 2022