Electron inertia contribution to soliton evolution in an inhomogeneous weakly relativistic two-fluid plasma

Journal Article · Fri Jul 15 04:00:00 EDT 2005 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.1943609· OSTI ID:20764378

Singh, Khushvant; Kumar, Vinod; Malik, Hitendra K ^[1]

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1. Department of Physics, BSA College Mathura, Mathura 281 001 (India)

The contribution of electron inertia to the evolution of solitons in weakly and strongly inhomogeneous plasmas having streaming ions and electrons with weak relativistic effect is studied on the basis of a relevant Korteweg-de Vries equation derived with the help of reductive perturbation technique. Three types of modes (fast, medium, and slow) are found to propagate in the plasma. In case of weak (strong) inhomogeneous plasma, only the fast (slow) mode corresponds to the soliton evolution. For the propagation of solitons in strongly inhomogeneous plasma, there is no restriction on the ion and electron velocities but in case of weak inhomogeneity the solitons are possible only for a particular range of velocity difference. This range shows the dependence on the temperature and mass ratios of the ions and electrons. In addition, it is realized that only the rarefactive solitons are possible in the present plasma model. The effect of electron inertia on the phase velocity, peak soliton amplitude, and soliton width is studied together with the effects of plasma density, ion temperature, and speeds (relativistic effects) of ions and electrons.

• OSTI ID: 20764378
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 7 Vol. 12; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
CHARGED-PARTICLE TRANSPORT
ELECTRON TEMPERATURE
ELECTRONS
EVOLUTION
INHOMOGENEOUS PLASMA
ION TEMPERATURE
IONS
KORTEWEG-DE VRIES EQUATION
MASS
MOMENT OF INERTIA
PERTURBATION THEORY
PHASE VELOCITY
PLASMA DENSITY
RELATIVISTIC PLASMA
RELATIVISTIC RANGE
SOLITONS