|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'504'928
Articles rated: 2609
25 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
The turbulent chiral-magnetic cascade in the early universe | | Axel Brandenburg
; Jennifer Schober
; Igor Rogachevskii
; Tina Kahniashvili
; Alexey Boyarsky
; Jurg Frohlich
; Oleg Ruchayskiy
; Nathan Kleeorin
; | | Date: |
11 Jul 2017 | | Abstract: | The presence of asymmetry between fermions of opposite handedness in plasmas
of relativistic particles can lead to exponential growth of a helical magnetic
field via a small-scale chiral dynamo instability known as the chiral magnetic
effect. Here we show, using dimensional arguments and numerical simulations,
that this process produces through the Lorentz force chiral-magnetically driven
turbulence. A k^{-2} magnetic energy spectrum emerges via inverse transfer over
a certain range of wavenumbers k. The total chirality (magnetic helicity plus
normalized chiral chemical potential) is conserved in this system. Therefore,
as the helical magnetic field grows, most of the total chirality gets
transferred into magnetic helicity until the chiral magnetic effect terminates.
Quantitative results for height, slope, and extent of the spectrum are
obtained. Consequences of this effect for cosmic magnetic fields are discussed. | | Source: | arXiv, 1707.3385 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER