A1 Journal article (refereed)
Chiral Instabilities and the Onset of Chiral Turbulence in QED Plasmas (2020)

Mace, M., Mueller, N., Schlichting, S., & Sharma, S. (2020). Chiral Instabilities and the Onset of Chiral Turbulence in QED Plasmas. Physical Review Letters, 124(19), Article 191604. https://doi.org/10.1103/PhysRevLett.124.191604

JYU authors or editors

Publication details

All authors or editorsMace, Mark; Mueller, Niklas; Schlichting, Soeren; Sharma, Sayantan

Journal or seriesPhysical Review Letters



Publication year2020


Issue number19

Article number191604

PublisherAmerican Physical Society

Publication countryUnited States

Publication languageEnglish


Publication open accessOpenly available

Publication channel open accessPartially open access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/69894

Web address of parallel published publication (pre-print)https://arxiv.org/abs/1910.01654


We present a first principles study of chiral plasma instabilities and the onset of chiral turbulence in QED plasmas with strong gauge matter interaction (e2Nf=64), far from equilibrium. By performing classical-statistical lattice simulations of the microscopic theory, we show that the generation of strong helical magnetic fields from a helicity imbalance in the fermion sector proceeds via three distinct phases. During the initial linear instability regime the helicity imbalance of the fermion sector causes an exponential growth (damping) of magnetic field modes with right- (left-) handed polarization, for which we extract the characteristic growth (damping) rates. Secondary growth of unstable modes accelerates the helicity transfer from fermions to gauge fields and ultimately leads to the emergence of a self-similar scaling regime characteristic of a decaying turbulence, where magnetic helicity is efficiently transferred to macroscopic length scales. Within this turbulent regime, the evolution of magnetic helicity spectrum can be described by an infrared power spectrum with spectral exponent κ=10.2±0.5 and dynamical scaling exponents α=1.14±0.50 and β=0.37±0.13.

Keywordsparticle physicsquantum field theoryplasma (gases)

Free keywordslattice field theory; plasma instabilitiles

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Ministry reportingYes

Reporting Year2020

JUFO rating3

Last updated on 2024-03-04 at 22:06