Stable Optical Vortex Solitons in Pair Plasmas
Plasma Physics
2013-05-29 v1 Optics
Abstract
It is shown that the pair plasmas with small temperature asymmetry can support existence of localized as well as de-localized optical vortex solitons. Coexistence of such solitons is possible due to peculiar form of saturating nonlinearity which has a focusing-defocusing nature -- for weak amplitudes being focusing becoming defocusing for higher amplitudes. It is shown that delocalized vortex soliton is stable in entire region of its existence while single- and multi-charged localized vortex solitons are unstable for low amplitudes and become stable for relativistic amplitudes.
Cite
@article{arxiv.0909.1394,
title = {Stable Optical Vortex Solitons in Pair Plasmas},
author = {V. I. Berezhiani and S. M. Mahajan and N. L. Shatashvili},
journal= {arXiv preprint arXiv:0909.1394},
year = {2013}
}
Comments
15 pages, 9 figures