Asymmetry-Driven Structure Formation in Pair Plasmas

Abstract

The nonlinear propagation of electromagnetic waves in pair plasmas, in which the electrostatic potential plays a very important but subdominant role of a "binding glue" is investigated. Several mechanisms for structure formation are investigated, in particular, the "asymmetry" in the initial temperatures of the constituent species. It is shown that the temperature asymmetry leads to a (localizing) nonlinearity that is new and qualitatively different from the ones originating in ambient mass or density difference. The temperature asymmetry driven focusing-defocusing nonlinearity supports stable localized wave structures in 1-3 dimensions, which, for certain parameters, may have flat-top shapes.

23 pages, 6 figures, introduction revised, edited typos, accepted for publication in Phys. Rev. E

References in corpus (5)

• Variability in GRBs - A Clue
• Nonlinear Wave Dynamics in Two Temperature Electron-Positron-Ion Plasma
• Wave Localization and Density Bunching in Pair Ion Plasmas
• Self-trapping of strong electromagnetic beams in relativistic plasmas
• Kinetic electrostatic structures in current-carrying pair plasmas

Cited by in corpus (8)

• On the Relaxed States in the Mixture of Degenerate and Non-Degenerate Hot Plasmas of Astrophysical Objects
• Stable Optical Vortex Solitons in Pair Plasmas
• New longitudinal mode and compression of pair ions in plasma
• Vortex Bubble Formation in Pair Plasmas
• Impact of temperature asymmetry and small fraction of static positive ions on the relaxed states of a relativistic hot pair plasma
• Modulation instability of lower hybrid waves leading to cusp solitons in electron-positron-ion Thomas Fermi plasma
• Localized Optical Vortex Solitons in Pair Plasmas
• Linear and nonlinear analysis of Ion-Temperature-Gradient (ITG) Driven mode in the asymmetric Pair-Ion Magnetoplasma