Langmuir wave phase-mixing in warm electron-positron-dusty plasmas

2018 ◽  
Vol 382 (15) ◽  
pp. 1020-1023 ◽  
Author(s):  
Sourav Pramanik ◽  
Chandan Maity
Keyword(s):  
Langmuir Wave ◽  
Dusty Plasmas ◽  
Phase Mixing ◽  
Wave Phase ◽  
Electron Positron

scholarly journals Phase mixing importance for both Landau instability and damping

2017 ◽  
Vol 83 (1) ◽  
Author(s):  
D. D. A. Santos ◽  
Yves Elskens
Keyword(s):  
Numerical Calculation ◽  
Degrees Of Freedom ◽  
Hamiltonian Formalism ◽  
Langmuir Wave ◽  
The Self ◽  
Phase Mixing ◽  
Mixing Effect ◽  
Self Consistent ◽  
Landau Instability

We discuss the self-consistent dynamics of plasmas by means of a Hamiltonian formalism for a system of $N$ near-resonant electrons interacting with a single Langmuir wave. The connection with the Vlasov description is revisited through the numerical calculation of the van Kampen-like eigenfrequencies of the linearized dynamics for many degrees of freedom. Both the exponential-like growth as well as damping of the Langmuir wave are shown to emerge from a phase mixing effect among beam modes, revealing unexpected similarities between the stable and unstable regimes.

scholarly journals Alfvén wave phase-mixing in flows

2016 ◽  
Vol 586 ◽  
pp. A95 ◽  
Author(s):  
D. Tsiklauri
Keyword(s):  
Alfven Wave ◽  
Phase Mixing ◽  
Wave Phase
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