Nonlinear Waves of a Surface Charge at the Boundary of a Semi-Infinite Cold Plasma in a Constant Magnetic Field
In this paper, an equation describing nonlinear wave phenomena on the surface of magnetically active plasma in the approximation of the complete homogeneity of processes along the direction of the constant magnetic field is obtained. One of its solutions, in the form of a pulse having the shape of r...
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MDPI AG
2025-05-01
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| author | Oleg M. Gradov |
| author_facet | Oleg M. Gradov |
| author_sort | Oleg M. Gradov |
| collection | DOAJ |
| description | In this paper, an equation describing nonlinear wave phenomena on the surface of magnetically active plasma in the approximation of the complete homogeneity of processes along the direction of the constant magnetic field is obtained. One of its solutions, in the form of a pulse having the shape of rapidly decaying oscillations with a changing period, is found to essentially depend on the magnitude of the magnetic field and shown to be approximately described by a specially selected analytical function. A detailed analytical analysis of the properties of another solitary wave formation existing under conditions of resonant coincidence of its carrier frequency with the corresponding value of its eigen surface oscillations in the considered cold semi-infinite plasma, in which a constant magnetic field is directed along its boundary, is also carried out. The conditions for the excitation of wave disturbances are determined, and analytical expressions that adequately describe the space–time structure of nonlinear waves are proposed. |
| format | Article |
| id | doaj-art-b5e9d90e0ff04c5ea37316c5330a569a |
| institution | DOAJ |
| issn | 2624-8174 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Physics |
| spelling | doaj-art-b5e9d90e0ff04c5ea37316c5330a569a2025-08-20T03:16:36ZengMDPI AGPhysics2624-81742025-05-01721610.3390/physics7020016Nonlinear Waves of a Surface Charge at the Boundary of a Semi-Infinite Cold Plasma in a Constant Magnetic FieldOleg M. Gradov0Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky prospect 31, Moscow 119071, RussiaIn this paper, an equation describing nonlinear wave phenomena on the surface of magnetically active plasma in the approximation of the complete homogeneity of processes along the direction of the constant magnetic field is obtained. One of its solutions, in the form of a pulse having the shape of rapidly decaying oscillations with a changing period, is found to essentially depend on the magnitude of the magnetic field and shown to be approximately described by a specially selected analytical function. A detailed analytical analysis of the properties of another solitary wave formation existing under conditions of resonant coincidence of its carrier frequency with the corresponding value of its eigen surface oscillations in the considered cold semi-infinite plasma, in which a constant magnetic field is directed along its boundary, is also carried out. The conditions for the excitation of wave disturbances are determined, and analytical expressions that adequately describe the space–time structure of nonlinear waves are proposed.https://www.mdpi.com/2624-8174/7/2/16solitary waveelectrostatic potentialcurved boundaryresonancesemi-infinite plasma |
| spellingShingle | Oleg M. Gradov Nonlinear Waves of a Surface Charge at the Boundary of a Semi-Infinite Cold Plasma in a Constant Magnetic Field Physics solitary wave electrostatic potential curved boundary resonance semi-infinite plasma |
| title | Nonlinear Waves of a Surface Charge at the Boundary of a Semi-Infinite Cold Plasma in a Constant Magnetic Field |
| title_full | Nonlinear Waves of a Surface Charge at the Boundary of a Semi-Infinite Cold Plasma in a Constant Magnetic Field |
| title_fullStr | Nonlinear Waves of a Surface Charge at the Boundary of a Semi-Infinite Cold Plasma in a Constant Magnetic Field |
| title_full_unstemmed | Nonlinear Waves of a Surface Charge at the Boundary of a Semi-Infinite Cold Plasma in a Constant Magnetic Field |
| title_short | Nonlinear Waves of a Surface Charge at the Boundary of a Semi-Infinite Cold Plasma in a Constant Magnetic Field |
| title_sort | nonlinear waves of a surface charge at the boundary of a semi infinite cold plasma in a constant magnetic field |
| topic | solitary wave electrostatic potential curved boundary resonance semi-infinite plasma |
| url | https://www.mdpi.com/2624-8174/7/2/16 |
| work_keys_str_mv | AT olegmgradov nonlinearwavesofasurfacechargeattheboundaryofasemiinfinitecoldplasmainaconstantmagneticfield |