title: Relativistic Klein-Gordon-Maxwell multistream model for quantum plasmas.
abstract: A multistream model for spinless electrons in a relativistic quantum plasma is introduced by means of a suitable fluidlike version of the Klein-Gordon-Maxwell system. The one- and two-stream cases are treated in detail. A new linear instability condition for two-stream quantum plasmas is obtained, generalizing the previously known nonrelativistic results. In both the one- and two-stream cases, steady-state solutions reduce the model to a set of coupled nonlinear ordinary differential equations, which can be numerically solved, yielding a manifold of nonlinear periodic and soliton structures. The validity conditions for the applicability of the model are addressed.
authors.affiliation: Departamento de Física, Universidade Federal do Paraná, Curitiba, Brazil.
authors.forename: F
authors.initials: F
authors.lastname: Haas
authors.forename: B
authors.initials: B
authors.lastname: Eliasson
authors.forename: P K
authors.initials: PK
authors.lastname: Shukla