Browsing by Author "Das, R."

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Effect of ion and negative ion temperatures on KdV and mKdV solitons in a multicomponent plasma
(2023) Madhukalya, B.; Das, R.; Hosseini, K.; Baleanu, D.; Hıncal, E.; 56389
The formation of ion-acoustic solitons (IASs) in an unmagnetized plasma with negative ions has been investigated through the KdV equation in both the situations Q′(=mj/mi=negativetopositiveionmassratio) less and greater than one and the mKdV equation only for Q′> 1. The existence of both KdV and mKdV solitons has been established for α(=iontoelectrontemperatureratio)>β(=negativeiontoelectrontemperatureratio) and α< β, which is the new outcome of the current investigation. Furthermore, the existence of both compressive and rarefactive solitons for Q′> 1 and Q′< 1 has been demonstrated.
Small amplitude ion-acoustic solitary waves in a magnetized ion-beam plasma under the effect of ion and beam temperatures
(2023) Madhukalya, B.; Das, R.; Hosseini, K.; Baleanu, D.; Salahshour, S.; 56389
In the present research of magnetized plasmas, both rarefactive and compressive solitons are found to exist, based on the values of certain parameters. It has been shown in the present investigation that inclusion of beam temperature into the plasma is in search of the existence of both slow and fast modes for both the cases Q′< 1 and Q′> 1. Furthermore, it is noteworthy to point out that the ion-acoustic soliton is found to exist for γ=UdsinθM=beam velocityphase velocity=1 as well. © 2023, The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature.
Solitons in magnetized plasma with electron inertia under weakly relativistic effect
(2023) Baleanu, Dumitru; Das, R.; Hosseini, K.; Baleanu, Dumitru; Salahshour, S.; 56389
In this relativistic consideration, the energy integral unlike others has been derived in a weakly relativistic plasma in terms of Sagdeev potential. Both compressive and rarefactive subsonic solitary waves are found to exist, depending on wave speeds in various directions of propagation. It is found that compressive relativistic solitons have potential depths that are higher than non-relativistic solitons in all directions of propagation, allowing for the presence of denser plasma particles in the potential well. Furthermore, it shows how compressive soliton amplitude grows as the propagation direction gets closer to the magnetic field’s direction.