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.
Cite
@article{arxiv.0909.0587,
title = {Asymmetry-Driven Structure Formation in Pair Plasmas},
author = {S. M. Mahajan and N. L. Shatashvili and V. I. Berezhiani},
journal= {arXiv preprint arXiv:0909.0587},
year = {2015}
}
Comments
23 pages, 6 figures, introduction revised, edited typos, accepted for publication in Phys. Rev. E