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- University of LisbonPT8 papers
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6 papers · 1 filter
Fast growing instabilities for non-parallel flows
A. Bret
Unstable modes growing when two plasma shells cross over a background plasma at arbitrary angle , are investigated using a non-relativistic three cold fluids model. Parallel flo…
Exact relativistic kinetic theory of an electron beam-plasma system: hierarchy of the competing modes in the system parameter space
A. Bret, L. Gremillet, D. Benisti +1
Besides being one of the most fundamental basic issues of plasma physics, the stability analysis of an electron beam-plasma system is of critical relevance in many areas of physics…
Filamentation instability in a quantum magnetized plasma
A. Bret
The filamentation instability occurring when a non relativistic electron beam passes through a quantum magnetized plasma is investigated by means of a cold quantum magnetohydrodyna…
Filamentation instability in a quantum plasma
A. Bret
The growth rate of the filamentation instability triggered when a diluted cold electron beam passes through a cold plasma is evaluated using the quantum hydrodynamic equations. Com…
Beam-plasma dielectric tensor with Mathematica
A. Bret
We present a \emph{Mathematica} notebook allowing for the symbolic calculation of the dielectric tensor of a electron-beam plasma system in the fluid approximation. Calc…
Oblique electromagnetic instabilities for an ultra relativistic electron beam passing through a plasma
A. Bret
We present an investigation of the electromagnetic instabilities which are trig gered when an ultra relativistic electron beam passes through a plasma. The linear growth rate is co…