Higher Order Corrections to Kinetic Alfvén Waves in Nonthermal Plasma

Sunidhi Singla; Geetika Slathia; Rajneet Kaur; N. S. Saini

doi:10.1109/TPS.2024.3454816

Higher Order Corrections to Kinetic Alfvén Waves in Nonthermal Plasma

Sunidhi Singla, Geetika Slathia, Rajneet Kaur, N. S. Saini

Research output: Contribution to journal › Article › peer-review

Abstract

In this investigation, the formation of kinetic Alfvén (KA) solitons in nonthermal electron-positron-ion (e-p-i) plasma has been illustrated. The Korteweg-de Vries (KdV) equation is derived by using the reductive perturbation technique. Further, the inclusion of higher order (HO) such as nonlinear and dispersion effects and inhomogeneous KdV-type equation is derived. Only positive potential KA wave (KAW) solitons are evolved in the given plasma environment. The influence of plasma beta, positron density, and nonthermality of electrons and positrons has been analyzed to study the characteristics of KAW solitons. The combined impact of density, nonthermality of electrons, as well as positrons has vastly modified the characteristics of solitons as well as dressed KAW solitons. This investigation may have applications for particle acceleration and energy transportation in interstellar medium where nonthermal electron and positron pairs exist.

Original language	English
Journal	IEEE Transactions on Plasma Science
DOIs	https://doi.org/10.1109/TPS.2024.3454816
State	Accepted/In press - 2024
Externally published	Yes

Funding

Manuscript received 7 July 2023; revised 16 February 2024 and 11 August 2024; accepted 30 August 2024. This work was supported by the Department of Science and Technology, Government of India, New Delhi, through the Department of Science and Technology-Science and Engineering Research Board (DST-SERB) Project, under Grant CRG/2019/003988. Sunidhi Singla has presented a part of this paper in the Third International Conference on \u201CAdvances in Plasma Science and Technology (ICAPST2023)\u201D held during March 23\u201325, 2023, organized by Sri Shakthi Institute of Engineering and Technology [DOI: 10.1109/TPS.2024.3454816]. The review of this article was arranged by Senior Editor S. J. Gitomer. (Corresponding author: N. S. Saini.) The authors are with the Department of Physics, Guru Nanak Dev University, Amritsar 143005, India (e-mail: [email protected]; [email protected]).

Funders	Funder number
Department of Science and Technology, Ministry of Science and Technology, India	CRG/2019/003988

Keywords

Dressed solitons
KA waves (KAWs)
Korteweg-de Vries (KdV) equations
higher order (HO) corrections
nonthermal

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10.1109/TPS.2024.3454816

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title = "Higher Order Corrections to Kinetic Alfv{\'e}n Waves in Nonthermal Plasma",

abstract = "In this investigation, the formation of kinetic Alfv{\'e}n (KA) solitons in nonthermal electron-positron-ion (e-p-i) plasma has been illustrated. The Korteweg-de Vries (KdV) equation is derived by using the reductive perturbation technique. Further, the inclusion of higher order (HO) such as nonlinear and dispersion effects and inhomogeneous KdV-type equation is derived. Only positive potential KA wave (KAW) solitons are evolved in the given plasma environment. The influence of plasma beta, positron density, and nonthermality of electrons and positrons has been analyzed to study the characteristics of KAW solitons. The combined impact of density, nonthermality of electrons, as well as positrons has vastly modified the characteristics of solitons as well as dressed KAW solitons. This investigation may have applications for particle acceleration and energy transportation in interstellar medium where nonthermal electron and positron pairs exist.",

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AU - Singla, Sunidhi

AU - Slathia, Geetika

AU - Kaur, Rajneet

AU - Saini, N. S.

PY - 2024

Y1 - 2024

N2 - In this investigation, the formation of kinetic Alfvén (KA) solitons in nonthermal electron-positron-ion (e-p-i) plasma has been illustrated. The Korteweg-de Vries (KdV) equation is derived by using the reductive perturbation technique. Further, the inclusion of higher order (HO) such as nonlinear and dispersion effects and inhomogeneous KdV-type equation is derived. Only positive potential KA wave (KAW) solitons are evolved in the given plasma environment. The influence of plasma beta, positron density, and nonthermality of electrons and positrons has been analyzed to study the characteristics of KAW solitons. The combined impact of density, nonthermality of electrons, as well as positrons has vastly modified the characteristics of solitons as well as dressed KAW solitons. This investigation may have applications for particle acceleration and energy transportation in interstellar medium where nonthermal electron and positron pairs exist.

AB - In this investigation, the formation of kinetic Alfvén (KA) solitons in nonthermal electron-positron-ion (e-p-i) plasma has been illustrated. The Korteweg-de Vries (KdV) equation is derived by using the reductive perturbation technique. Further, the inclusion of higher order (HO) such as nonlinear and dispersion effects and inhomogeneous KdV-type equation is derived. Only positive potential KA wave (KAW) solitons are evolved in the given plasma environment. The influence of plasma beta, positron density, and nonthermality of electrons and positrons has been analyzed to study the characteristics of KAW solitons. The combined impact of density, nonthermality of electrons, as well as positrons has vastly modified the characteristics of solitons as well as dressed KAW solitons. This investigation may have applications for particle acceleration and energy transportation in interstellar medium where nonthermal electron and positron pairs exist.

KW - Dressed solitons

KW - KA waves (KAWs)

KW - Korteweg-de Vries (KdV) equations

KW - higher order (HO) corrections

KW - nonthermal

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SN - 0093-3813

JO - IEEE Transactions on Plasma Science

JF - IEEE Transactions on Plasma Science

ER -

Higher Order Corrections to Kinetic Alfvén Waves in Nonthermal Plasma

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