Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Linear Stability of an Impulsively Accelerated Density Interface in an
  Ideal Two-Fluid Plasma   We investigate the linear evolution of Richtmyer-Meshkov (RM) instability in
the framework of an ideal two-fluid plasma model. The two-fluid plasma
equations of motion are separated into a base state and a set of linearized
equations governing the evolution of the perturbations. Different coupling
regimes between the charged species are distinguished based on a
non-dimensional Debye length parameter $d_{D,0}$. When $d_{D,0}$ is large, the
coupling between ions and electrons is sufficiently small that the induced
Lorentz force is very weak and the two species evolve as two separate fluids.
When $d_{D,0}$ is small, the coupling is strong and the induced Lorentz force
is strong enough that the difference between state of ions and electrons is
rapidly decreased by the force. As a consequence, the ions and electrons are
tightly coupled and evolve like one fluid. The temporal dynamics is divided
into two phases: an early phase wherein electron precursor waves are prevalent,
and a post ion shock-interface interaction phase during which the RM
instability manifests itself. We also examine the effect of an initially
applied magnetic field in the streamwise direction characterized by the
non-dimensional parameter $\beta_0$. For a short duration after the ion
shock-interface interaction, the growth rate is similar for different initial
magnetic field strengths. As time progresses the suppression of the instability
due to the magnetic field is observed. The growth rate shows oscillations with
a frequency that is related to the ion or electron cyclotron frequency.
  The instability is suppressed due to the vorticity being transported away
from the interface.

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The categories of this paper are: acc-phys
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The categories of this paper are: funct-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: quant-ph
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The categories of this paper are: nlin
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The categories of this paper are: math-ph
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: stat
0
The categories of this paper are: hep-ph
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The categories of this paper are: plasm-ph