Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A new two-stream instability mode in magnetized quantum plasma   A new transverse mode in a two-stream magnetized quantum plasma is studied by
means of a quantum hydrodynamic model, under non-relativistic and ideal Fermi
gas assumptions. It is found that Fermi pressure effects induce a minimum
cutoff wavelength for instability, unlike the classical case which is unstable
for larger wavenumbers. The external magnetic field is also shown to produce a
stabilizing effect. Conditions for the applicability of the model and specific
parameters for experimental observations are thoroughly discussed.

7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci