Phase-mixing of electrostatic modes in a cold magnetized electron-positron plasma

Journal Article · Thu Aug 15 00:00:00 EDT 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4817749· OSTI ID:22227889

Maity, Chandan; Chakrabarti, Nikhil ^[1]; Sengupta, Sudip ^[2]

---

1. Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700 064 (India)
2. Institute for Plasma Research, Bhat, Gandhinagar 382 428 (India)

In a fluid description, we study space-time evolution of electrostatic oscillations in a cold magnetized electron-positron plasma. Nonlinear results up to third order, obtained by employing a simple perturbation technique, indicate phase-mixing and thus breaking of excited oscillations, and provide an expression for the phase-mixing time. It is shown that an increase in the strength of ambient magnetic field results in an increase in the phase-mixing time. The results of our investigation will be of relevance to astrophysical environments as well as laboratory experiments.

• OSTI ID: 22227889
• Journal Information: Physics of Plasmas, Vol. 20, Issue 8; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ASTROPHYSICS
ELECTRONS
MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
NONLINEAR PROBLEMS
OSCILLATIONS
PERTURBATION THEORY
PLASMA FLUID EQUATIONS
PLASMA WAVES
POSITRONS
RELATIVISTIC PLASMA
SPACE-TIME