The nonlinear coupling between photons and non-resonant density perturbations in an electron-positron plasma is considered, taking into account the relativistic particle mass increase and the photon ponderomotive force. A pair of equations comprising a nonlinear Schrödinger equation for the photons and a driven (by the photon ponderomotive force) density response is derived. It is shown that the stationary solutions of the nonlinear equations can be represented as a photonic vortex and a photon bullet.
Photonic vortices in an electron-positron plasma / P. K., Shukla; Fedele, Renato; L., Stenflo. - In: PHYSICA SCRIPTA. - ISSN 0031-8949. - STAMPA. - 66:2(2002), pp. 173-174. [10.1238/Physica.Regular.066a00173]
Photonic vortices in an electron-positron plasma
FEDELE, RENATO;
2002
Abstract
The nonlinear coupling between photons and non-resonant density perturbations in an electron-positron plasma is considered, taking into account the relativistic particle mass increase and the photon ponderomotive force. A pair of equations comprising a nonlinear Schrödinger equation for the photons and a driven (by the photon ponderomotive force) density response is derived. It is shown that the stationary solutions of the nonlinear equations can be represented as a photonic vortex and a photon bullet.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.