Explanipedia

Thermoacoustic internal gravity wave turbulence in the Earth's lower atmosphere Open

Sanjib Das Adhikary, A. P. Misra · 2025

We propose, for the first time, a two-dimensional model for the nonlinear coupling of internal gravity and thermal waves in the presence of temperature-dependent density inhomogeneity due to thermal expansion and thermal feedback in strati…

Internal Gravity Wave Turbulence in the Earth’s Ionospheric F-Layer Open

Sanjib Das Adhikary, A. P. Misra · 2025

We employ a two-dimensional fluid simulation approach to study the nonlinear turbulent dynamics of internal gravity waves (IGWs) in the weakly ionized Earth’s ionospheric F-layer with the effects of Pedersen conductivity. We observe that t…

Dust-Ion-Acoustic Solitons in an Ion-Beam-Driven Dusty Magnetoplasma With Adiabatic and Nonadiabatic Dust Charge Variations Open

Num Prasad Acharya, Suresh Basnet, A. P. Misra, Raju Khanal · 2025

We study the characteristics of small-amplitude nonlinear dust-ion-acoustic (DIA) solitary waves in active magnetized positive-ion-beam-driven dusty plasmas with the effects of nonadiabatic and adiabatic dust charge variations. In the mode…

Coupling of Alfvén and magnetosonic waves in rotating Hall magnetoplasmas Open

A. P. Misra, Rupak Dey, V. Krishan · 2025

We study the linear theory of magnetohydrodynamic (MHD) waves, namely, the Alfvén and the fast and slow magnetosonic modes in a rotating Hall-MHD plasma with the effects of the obliqueness of the external magnetic field and the Coriolis fo…

Generalized Bohm sheath criterion for lunar dusty plasma and its interaction with lunar surface: Dust charging, dynamics, and levitation Open

Suresh Basnet, Aman Kumar, Young Dae Yoon, A. P. Misra · 2025

The emission of photoelectrons from the lunar surface due to the oblique incidence of solar ultraviolet (UV) radiation significantly affects the lunar plasma–surface interaction, which is crucial to understanding the dust charging mechanis…

Ion-acoustic solitons in a relativistic Fermi plasma at finite temperature Open

Rupak Dey, Gadadhar Banerjee, A. P. Misra, Chandan Bhowmik · 2024

Pattern formation and spatiotemporal chaos in relativistic degenerate plasmas Open

Sanjib Das Adhikary, A. P. Misra · 2024

We numerically study the nonlinear interactions of high-frequency circularly polarized electromagnetic (EM) waves and low-frequency electron-acoustic (EA) density perturbations driven by the EM wave ponderomotive force in relativistic plas…

Dust–ion–acoustic damped solitary waves and shocks in laboratory and Saturn's E-ring magnetized nonthermal dusty plasmas with anisotropic ion pressure and dust-charge fluctuation Open

Num Prasad Acharya, Suresh Basnet, A. P. Misra, Raju Khanal · 2024

We study the oblique propagation of weakly nonlinear dust–ion–acoustic (DIA) solitary waves (SWs) and shocks in collisional magnetized nonthermal dusty plasmas that are relevant in laboratory and space (Saturn's E-ring) environments. We co…

Transverse instability of electron-acoustic solitons in a relativistic degenerate astrophysical magnetoplasma Open

A. P. Misra, Alireza Abdikian · 2024

We study the nonlinear theory of small-amplitude electron-acoustic solitons (EASs) in a relativistic astrophysical magnetoplasma consisting of two-temperature electrons: a sparse population of relativistic nondegenerate classical electrons…

Rayleigh-Bénard convective motion of stratified fluids in the Earth's troposphere Open

A. P. Misra, T. D. Kaladze, D. T. Kaladze, L. V. Tsamalashvili · 2024

Recently, Kaladze and Misra [Phys. Scr. 99 (2024) 085013] showed that the tropospheric stratified fluid flows may be unstable by the effects of the negative temperature gradient and the temperature-dependent density inhomogeneity arising f…

Influence of temperature-dependent density inhomogeneity on the stability of atmospheric stratified fluids Open

T. D. Kaladze, A. P. Misra · 2024

The stability of atmospheric stratified fluids is revisited to study the influence of the temperature-dependent density inhomogeneity due to thermal expansion in the Earth’s lower atmosphere (with heights 0 to 50 km) under the action of gr…

Dust-ion-acoustic damped solitary waves and shocks in laboratory and Saturn's E-ring magnetized nonthermal dusty plasmas with anisotropic ion pressure and dust-charge fluctuation Open

Num Prasad Acharya, Suresh Basnet, A. P. Misra, Raju Khanal · 2024

We study the oblique propagation of weakly nonlinear dust-ion-acoustic (DIA) solitary waves (SWs) and shocks in collisional magnetized nonthermal dusty plasmas that are relevant in laboratory and space (Saturn's E-ring) environments. We co…

Rayleigh-Bénard Convective Motion of Stratified Fluids in the Earth's Troposphere Open

A. P. Misra, T. D. Kaladze, D. T. Kaladze, L. V. Tsamalashvili · 2024

Pattern Formation and Spatiotemporal Chaos in Relativistic Degenerate Plasmas Open

Sanjib Das Adhikary, A. P. Misra · 2024

Thermal expansion of atmosphere and stability of vertically stratified fluids Open

T. D. Kaladze, A. P. Misra · 2023

The influence of the thermal expansion of the Earth's atmosphere on the stability of vertical stratification of fluid density and temperature is studied. We show that such an influence leads to the instability of incompressible flows. Modi…

Modulation of electromagnetic waves in a relativistic degenerate plasma at finite temperature Open

Sima Roy, A. P. Misra, Alireza Abdikian · 2023

We study the modulational instability (MI) of a linearly polarized electromagnetic (EM) wave envelope in an intermediate regime of relativistic degenerate plasmas at a finite temperature (T≠0) where the thermal energy (KBT) and the rest-ma…

Modulation of electromagnetic waves in a relativistic degenerate plasma at finite temperature Open

S. Roy, A. P. Misra, Alireza Abdikian · 2023

We study the modulational instability (MI) of a linearly polarized electromagnetic (EM) wave envelope in an intermediate regime of relativistic degenerate plasmas at a finite temperature $(T\neq0)$ where the thermal energy $(K_BT)$ and the…

Ion-acoustic solitons in a relativistic Fermi plasma at finite temperature Open

R. Dey, G. Banerjee, A. P. Misra, C. Bhowmik · 2023

The theory of ion-acoustic solitons in nonrelativistic fully degenerate plasmas and nonrelativistic and ultra-relativistic degenerate plasmas at low temperatures is known. We consider a multi-component relativistic degenerate electron-posi…

Neutrino magnetohydrodynamic instabilities in presence of two-flavor oscillations Open

Debjani Chatterjee, A. P. Misra, Samiran Ghosh · 2023

The influence of neutrino flavor oscillations on the propagation of magnetohydrodynamic (MHD) waves and instabilities is studied in neutrino-beam driven magnetoplasmas. Using the neutrino MHD model, a general dispersion relation is derived…

Editorial: Wakefield generation and particle acceleration in high-intensity laser plasma and beam-plasma interactions Open

A. P. Misra, Amol R. Holkundkar · 2023

The plasma based particle acceleration mechanism has been recognized as one of the most promising alternative acceleration schemes over the past many years. In particular, the laser wakefield acceleration scheme (that uses the wave electri…

Thermal Expansion of Atmosphere and Stability of Vertically Stratified Fluids Open

T. D. Kaladze, A. P. Misra · 2023

Magnetohydrodynamic instabilities in a self-gravitating rotating cosmic plasma Open

Jyoti Turi, A. P. Misra · 2022

The generation of magnetohydrodynamic (MHD) waves and their instabilities are studied in galactic gaseous rotating plasmas with the effects of the magnetic field, the self gravity, the diffusion-convection of cosmic rays as well as the gas…

Electromagnetic solitons and their stability in relativistic degenerate dense plasmas with two electron species Open

Sima Roy, A. P. Misra · 2022

The evolution of electromagnetic (EM) solitons due to nonlinear coupling of circularly polarized intense laser pulses with low-frequency electron-acoustic perturbations is studied in relativistic degenerate dense astrophysical plasmas with…

Enhancing chaos in multistability regions of Duffing map for an image encryption algorithm Open

Hayder Natiq, Animesh Roy, Santo Banerjee, A. P. Misra, Nur Aisyah Abdul Fataf · 2022

We investigate the dynamics of a 2D chaotic Duffing map that exhibits coexisting chaotic attractors and periodic orbits with a typical set of system parameters. Such unusual behaviors in low-dimensional maps are unacceptable, especially in…

Internal Gravity Waves in the Earth’s Ionosphere Open

A. P. Misra, Animesh Roy, Debjani Chatterjee, T. D. Kaladze · 2022

The theory of low-frequency internal gravity waves (IGWs) is readdressed in\nthe stable stratified weakly ionized Earth's ionosphere. The formation of\ndipolar vortex structures and their dynamical evolution, as well as, the\nemergence of …

Analytical and numerical study of plane-progressive thermoacoustic shock waves in complex plasmas Open

A. P. Misra, G. Banerjee · 2022

The formation of thermoacoustic shocks is studied in a fluid complex plasma. The thermoacoustic wave mode can be damped (or anti-damped) when the contribution from the thermoacoustic interaction is lower (or higher) than that due to the pa…

Drift ion-acoustic waves in a nonuniform rotating magnetoplasma with two-temperature superthermal electrons Open

Alireza Abdikian, Mohammad Eghbali, A. P. Misra · 2022

The theory of low-frequency (in comparison with the ion cyclotron frequency), long wavelength, electrostatic drift ion-acoustic waves (IAWs) is studied in a nonuniform rotating magnetoplasma with two temperature superthermal electrons. In …

Wave-particle interactions in quantum plasmas Open

A. P. Misra, Gert Brodin · 2022

Nonlinear evolution of internal gravity waves in the Earth’s ionosphere: Analytical and numerical approach Open

T. D. Kaladze, A. P. Misra, Animesh Roy, Dipankar Chatterjee · 2022

Erratum: “Landau damping of electron-acoustic waves due to multi-plasmon resonances” [Phys. Plasmas <b>28</b>, 112102 (2021)] Open

A. P. Misra, Debjani Chatterjee, Gert Brodin · 2022

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