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Chiral anomaly and dynamos from inhomogeneous chemical potential fluctuations
- Source :
- Phys. Rev. Lett. 132, 065101 (2024)
- Publication Year :
- 2023
-
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.<br />Comment: 5 pages, 4 figures
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 132, 065101 (2024)
- Publication Type :
- Report
- Accession number :
- edsarx.2307.15118
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.132.065101