{"title":"研究带有正离子和相对论电子的暖磁等离子体中的大振幅离子声孤波","authors":"B. Madhukalya, M. Das, R. Das, L. Kalita","doi":"10.1007/s40042-024-01153-0","DOIUrl":null,"url":null,"abstract":"<div><p>The Sagdeev pseudopotential (SP) method is used to study ion acoustic solitary waves (IASWs) in a warm, magnetized plasma with relativistic electrons. Employing the pseudopotential approach allows for the investigation of solitary wave (SW) structures across arbitrary amplitudes. The study highlights the simultaneous occurrence of compressive <span>\\(\\left( {N > 1} \\right)\\)</span> subsonic <span>\\(\\left( {M < 1} \\right)\\)</span> solitons, as well as rarefactive <span>\\(\\left( {N < 1} \\right)\\)</span> subsonic and supersonic <span>\\(\\left( {M > 1} \\right)\\)</span> solitons, under specific parametric conditions. Notably, it is seen that as the direction cosine of wave propagation <span>\\(k_{z}\\)</span> increases, both the amplitude of SWs and the depth of the potential well decrease. The reduction in amplitude indicates a closer alignment between the magnetic field lines and the direction of wave propagation. The coexistence of compressive subsonic, rarefactive subsonic, and supersonic solitons in this plasma model is a rich and complex phenomenon that has both fundamental and practical implications in plasma physics. It reflects the intricate interplay of nonlinear effects, particle dynamics, and wave propagation in plasmas, with potential applications in both laboratory and astrophysical contexts.</p></div>","PeriodicalId":677,"journal":{"name":"Journal of the Korean Physical Society","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Investigation of large-amplitude ion acoustic solitary waves in a warm magnetoplasma with positive ions and relativistic electrons\",\"authors\":\"B. Madhukalya, M. Das, R. Das, L. Kalita\",\"doi\":\"10.1007/s40042-024-01153-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The Sagdeev pseudopotential (SP) method is used to study ion acoustic solitary waves (IASWs) in a warm, magnetized plasma with relativistic electrons. Employing the pseudopotential approach allows for the investigation of solitary wave (SW) structures across arbitrary amplitudes. The study highlights the simultaneous occurrence of compressive <span>\\\\(\\\\left( {N > 1} \\\\right)\\\\)</span> subsonic <span>\\\\(\\\\left( {M < 1} \\\\right)\\\\)</span> solitons, as well as rarefactive <span>\\\\(\\\\left( {N < 1} \\\\right)\\\\)</span> subsonic and supersonic <span>\\\\(\\\\left( {M > 1} \\\\right)\\\\)</span> solitons, under specific parametric conditions. Notably, it is seen that as the direction cosine of wave propagation <span>\\\\(k_{z}\\\\)</span> increases, both the amplitude of SWs and the depth of the potential well decrease. The reduction in amplitude indicates a closer alignment between the magnetic field lines and the direction of wave propagation. The coexistence of compressive subsonic, rarefactive subsonic, and supersonic solitons in this plasma model is a rich and complex phenomenon that has both fundamental and practical implications in plasma physics. It reflects the intricate interplay of nonlinear effects, particle dynamics, and wave propagation in plasmas, with potential applications in both laboratory and astrophysical contexts.</p></div>\",\"PeriodicalId\":677,\"journal\":{\"name\":\"Journal of the Korean Physical Society\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2024-08-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the Korean Physical Society\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s40042-024-01153-0\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Korean Physical Society","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s40042-024-01153-0","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
Investigation of large-amplitude ion acoustic solitary waves in a warm magnetoplasma with positive ions and relativistic electrons
The Sagdeev pseudopotential (SP) method is used to study ion acoustic solitary waves (IASWs) in a warm, magnetized plasma with relativistic electrons. Employing the pseudopotential approach allows for the investigation of solitary wave (SW) structures across arbitrary amplitudes. The study highlights the simultaneous occurrence of compressive \(\left( {N > 1} \right)\) subsonic \(\left( {M < 1} \right)\) solitons, as well as rarefactive \(\left( {N < 1} \right)\) subsonic and supersonic \(\left( {M > 1} \right)\) solitons, under specific parametric conditions. Notably, it is seen that as the direction cosine of wave propagation \(k_{z}\) increases, both the amplitude of SWs and the depth of the potential well decrease. The reduction in amplitude indicates a closer alignment between the magnetic field lines and the direction of wave propagation. The coexistence of compressive subsonic, rarefactive subsonic, and supersonic solitons in this plasma model is a rich and complex phenomenon that has both fundamental and practical implications in plasma physics. It reflects the intricate interplay of nonlinear effects, particle dynamics, and wave propagation in plasmas, with potential applications in both laboratory and astrophysical contexts.
期刊介绍:
The Journal of the Korean Physical Society (JKPS) covers all fields of physics spanning from statistical physics and condensed matter physics to particle physics. The manuscript to be published in JKPS is required to hold the originality, significance, and recent completeness. The journal is composed of Full paper, Letters, and Brief sections. In addition, featured articles with outstanding results are selected by the Editorial board and introduced in the online version. For emphasis on aspect of international journal, several world-distinguished researchers join the Editorial board. High quality of papers may be express-published when it is recommended or requested.