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arXiv · 0909.1394

Stable Optical Vortex Solitons in Pair Plasmas

V. I. Berezhiani·S. M. Mahajan·N. L. Shatashvili
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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.

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V. I. Berezhiani, S. M. Mahajan, N. L. Shatashvili. 2009-09-08. Stable Optical Vortex Solitons in Pair Plasmas. https://doi.org/10.1103/physreva.81.053812

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