Browsing by Department "Fusion Studies"
Now showing items 19 of 9

Angular redistribution of nonlinear perturbations: A universal feature of nonuniform flows
(201006)Classically, the net action of nonlinear turbulent processes is interpreted as either a direct or inverse cascade. However, in nonuniform/shear flows the dominant process is a nonlinear redistribution over wave number angle ... 
Asymmetrydriven structure formation in pair plasmas
(200912)The nonlinear propagation of electromagnetic waves in pair plasmas, in which the electrostatic potential plays a very important but subdominant role of a "binding glue" is investigated. Several mechanisms for structure ... 
Particle simulation of Lyapunov exponents in onecomponent strongly coupled plasmas
(199703)The Lyapunov exponents and instantaneous expansion rates in a phase space of Coulomb manybody systems are measured with the use of a threedimensional particle code SCOPE [K. Nishihara, Kakuyugo Kenkyu 66, 253 (1991)]. ... 
Plasma acceleration and cooling by strong laser field due to the action of radiation reaction force
(200812)It is shown that for super intense laser pulses propagating in a hot plasma, the action of the radiation reaction force (appropriately incorporated into the equations of motion) causes strong bulk plasma motion with the ... 
Selfmodulation of nonlinear Alfven waves in a strongly magnetized relativistic electronpositron plasma
(201308)We study the selfmodulation of a circularly polarized Alfven wave in a strongly magnetized relativistic electronpositron plasma with finite temperature. This nonlinear wave corresponds to an exact solution of the equations, ... 
Selfmodulation of nonlinear waves in a weakly magnetized relativistic electronpositron plasma with temperature
(201204)We develop a nonlinear theory for selfmodulation of a circularly polarized electromagnetic wave in a relativistic hot weakly magnetized electronpositron plasma. The case of parallel propagation along an ambient magnetic ... 
Turbulence and biasinduced flows in simple magnetized toroidal plasmas
(201105)Turbulence and biasinduced flows in simple magnetized toroidal plasmas are explored with global threedimensional fluid simulations, focusing on the parameters of the Helimak experiment. The simulations show that plasma ... 
Twofluid temperaturedependent relativistic waves in magnetized streaming pair plasmas
(201002)A relativistic twofluid temperaturedependent approach for a streaming magnetized pair plasma is considered. Such a scenario corresponds to secondary plasmas created at the polar caps of pulsar magnetospheres. In the model ... 
Vortex bubble formation in pair plasmas
(201307)It is shown that delocalized vortex solitons in relativistic pair plasmas with small temperature asymmetries can be unstable for intermediate intensities of the background electromagnetic field. Instability leads to the ...