title: Self-trapping of strong electromagnetic beams in relativistic plasmas.
abstract: Interaction of an intense electromagnetic (em) beam with a relativistic electron-positron (e-p) plasma is investigated. It is shown that the thermal pressure brings about a fundamental change in the dynamics-localized, high amplitude, em field structures, not accessible to a cold (but relativistic) plasma, can now be formed under well-defined conditions. The possibilities of trapping em beams in self-guiding regimes to form stable two-dimensional solitonic structures in a pure e-p plasma are worked out.
authors: Graduate School of Frontier Sciences, The University of Tokyo, Hongo 7-3-1, Tokyo 113-0033, Japan.
authors: V I
authors: VI
authors: Berezhiani
authors: S M
authors: SM
authors: Mahajan
authors: Z
authors: Z
authors: Yoshida
authors: M
authors: M
authors: Ohhashi