Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electron cyclotron drift instability and anomalous transport: two-fluid
  moment theory and modeling   In a cross-field (ExB) setup, the electron ExB flow relative to the
unmagnetized ions can cause the Electron Cyclotron Drift Instability (ECDI) due
to resonances of the ion-acoustic mode and the electron cyclotron harmonics.
This occurs in collisionless shocks in magnetospheres and in ExB discharge
devices such as Hall thrusters. ECDI induces an electron flow parallel to the
background E field at a speed greatly exceeding predictions by classical
collision theory. Such anomalous transport might cause unfavorable plasma flows
towards the walls of ExB devices. Prediction of ECDI and anomalous transport is
often thought to require a fully kinetic treatment. In this work, however, we
demonstrate that a reduced variant of this instability, and more importantly,
the anomalous transport, can be treated self-consistently in a collisionless
two-fluid framework without any adjustable collision parameter, by treating
both electron and ion species on an equal footing. We will first present linear
analyses of the instability in the two-fluid 5- and 10-moment models, and
compare them against the fully kinetic theory. At low temperatures, the
two-fluid models predict the fastest-growing mode comparable to the kinetic
results. Also, by including more moments, secondary (and possibly higher)
unstable branches can be recovered. The dependence of the instability on
ion-to-electron mass ratio, plasma temperature, and the background field
strength is also thoroughly explored. We then carry out 5-moment simulations of
the cross-field setup. The development of the instability and the anomalous
transport are confirmed and in excellent agreement with theoretical
predictions. The force balance properties are also studied. This work casts new
insights into the nature of ECDI and the induced anomalous transport and
demonstrates the potential of the two-fluid moment model in the efficient
modeling of ExB plasmas.

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The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
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The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
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The categories of this paper are: adap-org
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The categories of this paper are: atom-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: eess
14
The categories of this paper are: math-ph
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The categories of this paper are: funct-an