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JTAP-01.10.2023

Journal of Theoretical and Applied Physics (JTAP)

Editor-in-Chief: Davoud Dorranian

Online ISSN: 2251-7235

Print ISSN: 2251-7227

Publishes Bimonthly


Volume 17 (2023) JTAP

Issue 4, September & October 2023

Original Article
The quantum fluctuations of charge and current in a driven nonlinear LC-circuit with a linear capacitor and a nonlinear inductor

A nonlinear soft-core ferrite (ferromagnetic material) inductor that obeys of a polynomial current-magnetic flux relationship (typically a power series in the magnetic flux) is introduced. The quantum Hamiltonian of a nonlinear LC-circuit consisting of a linear capacitor and a nonlinear inductor under the influence of an external field is found. The energy spectrum is obtained […]

The quantum fluctuations of charge and current in a driven nonlinear LC-circuit with a linear capacitor and a nonlinear inductor
Original Article
Characterization of RF-driven atmospheric pressure plasma micro-jet plume

The plasma parameters of an RF-driven plasma microjet in different applied RF powers, different positions from the outlet nozzle, and various argon flow rates are investigated. A double Langmuir probe is designed and constructed, then, the electron temperature, ion density, and saturation currents along the microjet axis at different positions such as top, mid, end […]

Characterization of RF-driven atmospheric pressure plasma micro-jet plume
Original Research
Optical imaging and magnetic field simulation of a DC circular planar magnetron sputtering discharge

In this paper, the optical images of glow discharge plasma and the finite element method simulation of the magnetic field strength in a balanced and two types of unbalanced DC circular planar magnetron sputtering sources are presented. The investigation showed that wherever the magnetic field strength is stronger, the intensity of light and the ionization […]

Optical imaging and magnetic field simulation of a DC circular planar magnetron sputtering discharge
Original Article
Investigation of MHD instabilities in tokamak plasmas Using biorthogonal decomposition of Mirnov coil data

Spatiotemporal signal analysis is essential in investigating magnetic fluctuations of tokamak plasmas. Signal analysis of Mirnov coils through biorthogonal decomposition (BD) can reveal the spatial structure and time evolution of magnetohydrodynamic (MHD) instabilities in a tokamak. This technique is comparable to singular value decomposition in terms of formulation. The present study calculates the probability of […]

Investigation of MHD instabilities in tokamak plasmas Using biorthogonal decomposition of Mirnov coil data
Original Article
Quantum mechanical treatment of Shannon entropy measure and energy spectra of selected diatomic molecules with the modified Kratzer plus generalized inverse quadratic Yukawa potential model

In this research, we have obtained the energy eigenvalues and the corresponding normalized eigenfunction for the linear combination of the modified Kratzer and generalized inverse quadratic Yukawa potential using two different analytical methods: the exact quantization rule and the formula method respectively. The obtained normalized wave function is used to study the Shannon entropy in […]

Quantum mechanical treatment of Shannon entropy measure and energy spectra of selected diatomic molecules with the modified Kratzer plus generalized inverse quadratic Yukawa potential model
Original Article
Approximate solutions of the Dirac equation with Deformed Woods-Saxon potential including a Hellmann like tensor interaction

An Approximate bound state solutions of the Dirac equation under the spin and pseudospin symmetries for the deformed Woods-Saxon potential with a Hellmann-like tensor interaction was examined. With the help of the Nikiforov-Uvarov functional analysis (NUFA) method and an approximation scheme, the analytical and numerical energies of the combined potential were obtained for both symmetries, […]

Approximate solutions of the Dirac equation with Deformed Woods-Saxon potential including a Hellmann like tensor interaction
Original Article
Phase transformation; structural and optical properties of two dimensional MoO3

Thin-layered materials from transition-metal dichalcogenides family and their preforms such as molybdenum three oxides (MoO3) exhibit great potential as active material in optoelectronics. Stable materials of few atoms thick have shown emerging capabilities in this area. In this article, we report the synthesis of MoO3 nanostructures by spray pyrolysis method. We will, perhaps for the […]

Phase transformation structural and optical properties of two dimensional MoO3
Original Article
Role of dust on the gradient driven instability in an E×B plasma

The E*B plasma systems play an important role in the technologies like electric space propulsion and magnetized plasma sources used in plasma material interaction / surface processing. However, due to the gradient in plasma density, collisions and external fields such systems become prone to the instabilities and also dust particles are generated during the plasma […]

Role of dust on the gradient driven instability in an E×B plasma
Original Article
Exploring elastic mechanics and radiation shielding efficacy in neodymium(III)-enhanced zinc tellurite glasses: A theoretical and applied physics perspective

The present work scrutinizes the radiation protection features and mechanical characteristics of neodymium zinc-tellurite of composition [(TeO2)70-(ZnO)30]1-x –(Nd2O3)x: x= 0-5 mol% in steps of 1 (TZNd1 – 5). The Makishima–Mackenzie’s model was adopted for the computation of the Poisson’s ratio (PR) and elastic moduli. WinXcom and EXABCal software’s were performed to evaluate the radiation shielding […]

Exploring elastic mechanics and radiation shielding efficacy in neodymium(III)-enhanced zinc tellurite glasses A theoretical and applied physics perspective
Original Article
Low-frequency electrostatic waves and chaotic motions in collisional superthermal plasmas

In this work, the dynamics and chaotic behavior of ion-acoustic (IA) traveling waves in a collisional plasma consisting of cold ions, superthermal electrons, and immobile neutral particles are studied. The effect of ion-neutral collisions is also considered here. Using the reductive perturbation technique, a forced modified Korteweg-de Vries (FMK-dV) equation is obtained in the presence […]

Low-frequency electrostatic waves and chaotic motions in collisional superthermal plasmas
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