Two-dimensional cylindrical ion-acoustic solitary and rogue waves in ultrarelativistic plasmas
- Institute of Physics and Electronics, University of Peshawar, Peshawar 25000 (Pakistan)
- National Centre for Physics at QAU Campus, Shahdrah Valley Road, Islamabad 44000 (Pakistan)
- Department of Physics, Faculty of Science, Port Said University, Port Said 42521 (Egypt)
The propagation of ion-acoustic (IA) solitary and rogue waves is investigated in a two-dimensional ultrarelativistic degenerate warm dense plasma. By using the reductive perturbation technique, the cylindrical Kadomtsev–Petviashvili (KP) equation is derived, which can be further transformed into a Korteweg–de Vries (KdV) equation. The latter admits a solitary wave solution. However, when the frequency of the carrier wave is much smaller than the ion plasma frequency, the KdV equation can be transferred to a nonlinear Schrödinger equation to study the nonlinear evolution of modulationally unstable modified IA wavepackets. The propagation characteristics of the IA solitary and rogue waves are strongly influenced by the variation of different plasma parameters in an ultrarelativistic degenerate dense plasma. The present results might be helpful to understand the nonlinear electrostatic excitations in astrophysical degenerate dense plasmas.
- OSTI ID:
- 22227922
- Journal Information:
- Physics of Plasmas, Vol. 20, Issue 7; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ASTROPHYSICS
CYLINDRICAL CONFIGURATION
EXCITATION
ION ACOUSTIC WAVES
IONS
KORTEWEG-DE VRIES EQUATION
LANGMUIR FREQUENCY
MATHEMATICAL SOLUTIONS
NONLINEAR PROBLEMS
PERTURBATION THEORY
PLASMA DENSITY
RELATIVISTIC PLASMA
SOLITONS
TWO-DIMENSIONAL CALCULATIONS
WAVE PACKETS