Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gyrokinetic simulations of electric current generation in ion
  temperature gradient driven turbulence   Gyrokinetic simulations in the collisionless limit demonstrate the physical
mechanisms and the amplitude of the current driven by turbulence. Simulation
results show the spatio-temporal variation of the turbulence driven current and
its connection to the divergence of the Reynolds stress and the turbulence
acceleration. Fine structures (a few ion Larmor radii) of the turbulence
induced current are observed near the rational surfaces with the arbitrary
wavelength solver of the quasi-neutrality equation. The divergence of the
Reynolds stress plays a major role in the generation of these fine structures.
The so-called "spontaneous" current is featured with large local magnitude near
the rational surfaces.

11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom