(2+1)-dimensional modulated nonlinear ion-acoustic soliton packets in magnetized electronegative plasma
The dynamics of propagation of (2+1)-dimensional ion-acoustic wave (IAW) packets in magnetized electronegative plasma made of negative ions with electrons, both in Boltzmann distribution and cold mobile positive ions is studied. For this purpose, the standard reductive perturbation method is used to...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379723006149 |
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| author | Stéphanie Ganyou Serge I. Fewo Chérif S. Panguetna Timoléon C. Kofané |
| author_facet | Stéphanie Ganyou Serge I. Fewo Chérif S. Panguetna Timoléon C. Kofané |
| author_sort | Stéphanie Ganyou |
| collection | DOAJ |
| description | The dynamics of propagation of (2+1)-dimensional ion-acoustic wave (IAW) packets in magnetized electronegative plasma made of negative ions with electrons, both in Boltzmann distribution and cold mobile positive ions is studied. For this purpose, the standard reductive perturbation method is used to derive the (2+1)-dimensional nonlinear Schrödinger (NLS) equation, which governs the modulation of positive IAW packets. The coefficients of the obtained NLS equation do not only depend on the system parameters specially the electronegative parameters such as the negative ion concentration ratio and the electron-to-negative ion temperature ratio (α and σn, respectively), but also on the magnetic field (ωp). The modulational instability is studied to analyze the areas of the emergence of waves. In order to describe the main characteristics of IAWs, the variational method is performed involving trial function solution of NLS equation and the exact (input profile) and numerical (output profile) solutions are also discussed. |
| first_indexed | 2024-03-12T00:06:31Z |
| format | Article |
| id | doaj.art-cb63557ddb5d43829d48ac6a0e30a232 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-03-12T00:06:31Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
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| series | Results in Physics |
| spelling | doaj.art-cb63557ddb5d43829d48ac6a0e30a2322023-09-17T04:56:21ZengElsevierResults in Physics2211-37972023-09-0152106821(2+1)-dimensional modulated nonlinear ion-acoustic soliton packets in magnetized electronegative plasmaStéphanie Ganyou0Serge I. Fewo1Chérif S. Panguetna2Timoléon C. Kofané3Laboratory of Mechanics, Materials and Structures, Department of Physics, Faculty of Science, The University of Yaounde I, P.O. Box 812, Yaounde, CameroonCorresponding author.; Laboratory of Mechanics, Materials and Structures, Department of Physics, Faculty of Science, The University of Yaounde I, P.O. Box 812, Yaounde, CameroonLaboratory of Mechanics, Materials and Structures, Department of Physics, Faculty of Science, The University of Yaounde I, P.O. Box 812, Yaounde, CameroonLaboratory of Mechanics, Materials and Structures, Department of Physics, Faculty of Science, The University of Yaounde I, P.O. Box 812, Yaounde, CameroonThe dynamics of propagation of (2+1)-dimensional ion-acoustic wave (IAW) packets in magnetized electronegative plasma made of negative ions with electrons, both in Boltzmann distribution and cold mobile positive ions is studied. For this purpose, the standard reductive perturbation method is used to derive the (2+1)-dimensional nonlinear Schrödinger (NLS) equation, which governs the modulation of positive IAW packets. The coefficients of the obtained NLS equation do not only depend on the system parameters specially the electronegative parameters such as the negative ion concentration ratio and the electron-to-negative ion temperature ratio (α and σn, respectively), but also on the magnetic field (ωp). The modulational instability is studied to analyze the areas of the emergence of waves. In order to describe the main characteristics of IAWs, the variational method is performed involving trial function solution of NLS equation and the exact (input profile) and numerical (output profile) solutions are also discussed.http://www.sciencedirect.com/science/article/pii/S2211379723006149Magnetized electronegative plasmaNonlinear Schrödinger equationModulational instabilityVariational approach |
| spellingShingle | Stéphanie Ganyou Serge I. Fewo Chérif S. Panguetna Timoléon C. Kofané (2+1)-dimensional modulated nonlinear ion-acoustic soliton packets in magnetized electronegative plasma Results in Physics Magnetized electronegative plasma Nonlinear Schrödinger equation Modulational instability Variational approach |
| title | (2+1)-dimensional modulated nonlinear ion-acoustic soliton packets in magnetized electronegative plasma |
| title_full | (2+1)-dimensional modulated nonlinear ion-acoustic soliton packets in magnetized electronegative plasma |
| title_fullStr | (2+1)-dimensional modulated nonlinear ion-acoustic soliton packets in magnetized electronegative plasma |
| title_full_unstemmed | (2+1)-dimensional modulated nonlinear ion-acoustic soliton packets in magnetized electronegative plasma |
| title_short | (2+1)-dimensional modulated nonlinear ion-acoustic soliton packets in magnetized electronegative plasma |
| title_sort | 2 1 dimensional modulated nonlinear ion acoustic soliton packets in magnetized electronegative plasma |
| topic | Magnetized electronegative plasma Nonlinear Schrödinger equation Modulational instability Variational approach |
| url | http://www.sciencedirect.com/science/article/pii/S2211379723006149 |
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