Chiral Instabilities and the Onset of Chiral Turbulence in QED Plasmas

Mace M, Mueller N, Schlichting S, Sharma S (2020)
Physical review letters 124(19): 191604.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Mace, Mark; Mueller, Niklas; Schlichting, SörenUniBi ; Sharma, Sayantan
Abstract / Bemerkung
We present a first principles study of chiral plasma instabilities and the onset of chiral turbulence in QED plasmas with strong gauge matter interaction (e^{2}N_{f}=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 kappa=10.2±0.5 and dynamical scaling exponents alpha=1.14±0.50 and beta=0.37±0.13.
Erscheinungsjahr
2020
Zeitschriftentitel
Physical review letters
Band
124
Ausgabe
19
Art.-Nr.
191604
ISSN
1079-7114
Page URI
https://pub.uni-bielefeld.de/record/2943711

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Mace M, Mueller N, Schlichting S, Sharma S. Chiral Instabilities and the Onset of Chiral Turbulence in QED Plasmas. Physical review letters. 2020;124(19): 191604.
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), 191604. doi:10.1103/PhysRevLett.124.191604
Mace, M., Mueller, N., Schlichting, S., and Sharma, S. (2020). Chiral Instabilities and the Onset of Chiral Turbulence in QED Plasmas. Physical review letters 124:191604.
Mace, M., et al., 2020. Chiral Instabilities and the Onset of Chiral Turbulence in QED Plasmas. Physical review letters, 124(19): 191604.
M. Mace, et al., “Chiral Instabilities and the Onset of Chiral Turbulence in QED Plasmas”, Physical review letters, vol. 124, 2020, : 191604.
Mace, M., Mueller, N., Schlichting, S., Sharma, S.: Chiral Instabilities and the Onset of Chiral Turbulence in QED Plasmas. Physical review letters. 124, : 191604 (2020).
Mace, Mark, Mueller, Niklas, Schlichting, Sören, and Sharma, Sayantan. “Chiral Instabilities and the Onset of Chiral Turbulence in QED Plasmas”. Physical review letters 124.19 (2020): 191604.

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PMID: 32469570
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arXiv: 1910.01654

Inspire: 1757505

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