1. Degeneracy affected stability in ionospheric plasma waves.
- Author
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Chandra, Swarniv, Das, Chinmay, Sarkar, Jit, and Chaudhuri, Chanchal
- Subjects
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IONOSPHERIC plasma , *PLASMA waves , *QUANTUM plasmas , *NONLINEAR Schrodinger equation , *PLASMA stability , *THEORY of wave motion , *QUANTUM perturbations - Abstract
Ionospheric plasma introduces nonlinear perturbations in regular EM wave propagation which in turn affects the signal transmission in a highly nonlinear manner. Often the signals are distorted by a varied degree of nonlinearity. The wireless communication mechanism is affected by small perturbations which take gigantic rogue wave structures with the possibility of damaging sophisticated equipments. To study the evolution of rogue wave-type solitons starting from initial small-amplitude perturbations, we have considered a three-component electron–ion plasma system with degeneracy pressure as well as quantum diffraction effects. A solitary wave structure is formed due to the interplay of nonlinear and dispersive forces. Such a formation under an external force gets modified and the stability criteria are altered. The interesting fact thus obtained here shows that relativistic and thermal degeneracy favour stability whereas quantum diffraction leads to instability. In this paper, we have studied how solitary wave structures behave under an external force. Next, we study how the nonlinear effects cause an amplitude modulation and the envelope soliton is formed. Such an envelope soliton is studied by the nonlinear Schrödinger equation that we derive in the later part of the work. We have carried out simulation studies and compared our results with the analytical findings of other workers. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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