Internal vibrations of nonlocal nonlinear Schrödinger soliton

Autor: Evgeny V. Doktorov
Rok vydání: 2009
Předmět:
Zdroj: Physics Letters A. 374:247-251
ISSN: 0375-9601
DOI: 10.1016/j.physleta.2009.10.067
Popis: We prove that the nonlocality is a source of the internal mode generation in a bright soliton of the nonlocal nonlinear Schrodinger equation, at least in the weak nonlocality limit. The internal mode bifurcates from the edge of the continuous spectrum of the linearized eigenvalue problem into the gap of this spectrum. A dependence of the internal mode propagation constant position in the gap on the nonlocality rate is established. It is shown that the vibration amplitude of the soliton decays inversely proportional to the propagation distance, as in the local models.
Databáze: OpenAIRE