Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The separation of ions and fluxes in nonlinear ion-acoustic waves   The multi-species plasma of natural or laboratory origin is often considered
to host nonlinear ion-acoustic waves. We present calculations of ion fluxes
induced by nonlinear ion-acoustic waves in a plasma consisting of multiple ion
populations, electrons, and dust. The following plasma models are considered:
an electron-ion plasma with cold ions, a bi-ion plasma with two types of warm
positively charged ions, and a dusty bi-ion plasma. It is found that in the
electron-ion plasma, the wave-induced ion flux is directed oppositely to the
phase speed of the nonlinear ion-acoustic wave. In the bi-ion plasma, there are
two modes of ion-acoustic waves which are fast and slow waves. In the nonlinear
fast ion-acoustic wave, the fluxes of both types of ions are found to be
co-directed and drift against the wave. In a slow wave, the nonlinear fluxes of
ions are directed in opposite directions. This result demonstrates the
possibility to use these nonlinear wave-induced ion fluxes for effective
separation of ions in the plasma. In a dusty bi-ion plasma, the ion separation
process can be intensified by a super-nonlinear regime of slow ion-acoustic
waves.

15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg