A5002062843- Atomic and Molecular Physics
- Advanced Chemical Physics Studies
- Mass Spectrometry Techniques and Applications
- Cellular Automata and Applications
- Cosmology and Gravitation Theories
- Solar and Space Plasma Dynamics
- Astro and Planetary Science
- Chaos-based Image/Signal Encryption
- Chaos control and synchronization
- X-ray Spectroscopy and Fluorescence Analysis
- Quantum chaos and dynamical systems
University of Karachi
2019-2024
Abstract This research aims to investigate the influence of model parameters and fractional order on a novel mathematical with tangent hyperbolic memristor. investigation conducted by applying Lyapunov exponents bifurcation analysis. We utilize exponent theory understand characterize these chaotic behaviors under indices. The exponent, bifurcation, phase diagrams have been depicted explore intricate dynamics system governed equation. A approach termed Atangana-Baleanu-Caputo (ABC) derivative...
Abstract: The single-electron approximation and quantum defect theory have been used to study the spectral properties of radiative transitions in beryllium ions (Be II). A total 6386 Be II investigated. lifetime nS, nP, nD, nF Rydberg states (1s2 nl), for n up 30, computed compared with available data. Most lifetimes are new. Transition probabilities, oscillator strengths, line strengths being reported here. Python program was developed calculate radial integral, same compute corresponding...
Abstract This research investigates the effects of model parameters and fractional order on a novel mathematical with tangent hyperbolic memristors. An analysis bifurcations Lyapunov exponents was conducted in this study. A chaotic behavior coexisting attractors is observed when operators are applied to new model. Utilization exponent theory understand characterize these behaviors under various orders. To explore dynamics system governed by Caputo fractional-order equations, exploration...
Abstract In this study, the ground state and excited ionization limits with without consideration of relativistic effects are computed for a helium-like iso-spectrum level sequence following configurations: <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msup> <mml:mrow> <mml:mi mathvariant="normal">1s</mml:mi> </mml:mrow> <mml:mn>2</mml:mn> </mml:msup> <mml:mmultiscripts> mathvariant="normal">S</mml:mi> <mml:mn>0</mml:mn> <mml:none/> <mml:mprescripts/>...
Theoretical computations of Rydberg energy levels series and atomic lifetimes for singly ionized boron (B II), silicon (Si germanium (Ge II) have been performed. In the theoretical computation weakest bound electron potential model theory (WBEPMT) is employed. Regularities changes in quantum defects following states series: 2sns ( 1 S 0 ), 2snp ([Formula: see text]), 2snf text], [Formula: text]) B II; 3s 2 ns 1/2 nd D 3/2,5/2 nf ng G 7/2,9/2 ) Si 4s Ge II, up to n = 50 are presented. The 1s...
Nitrogen is one of the key elements in evolution and formation stellar objects. Earth's atmosphere contains 21% oxygen 78% nitrogen; these two gases give rise to aurora when ions solar wind ionosphere collide with them. Some aerosols made nitrogen are also found atmosphere. Nitrogen, hydrogen, carbon, main contributors origin life on Earth. The spectrum ion (N V) has been studied using Quantum defect theory (QDT) Numerical Coulombic approximation (NCA). N V electrons core, nucleus, electron...