June 2025 - 15 articles
The large-scale dynamics of the universe is generally described in terms of the time-dependent scale factor a(t). To make contact with observational data, the a(t) function needs to be related to the observable z(r) function, redshift versus distance...
External fields modify the confinement potential and electronic structure in a multiple quantum well system, affecting the light–matter interaction. Here, we present a theoretical study of the modulation of the nonlinear optical response simult...
The macroscopic magnetic properties of magnetorheological elastomers (MREs) are influenced by their microstructure, yet limited investigations has been conducted on this subject to date. In this paper, a microstructure-based model is proposed to inve...
We consider a multilevel atom, such as a hydrogen atom, interacting with the quantum electromagnetic field in the dressed ground state of the interacting system. Using perturbation theory within the dipole approximation, we evaluate the dressed groun...
We construct the Green functions (or Feynman’s propagators) for the Schrödinger equations of the form iψt+14ψxx±tx2ψ=0 (for the wave function ψ and its time (t) and x-space derivatives) in terms o...
In this paper, the chaotic behavior and subharmonic bifurcation in a dynamical model for charged dilation-AdS black holes are investigated in extended phase space using analytical and numerical methods. An analytical expression for the chaotic critic...
Phase change materials (PCMs) are widely used in latent heat thermal energy storage systems (LHTESSs), but their low thermal conductivity limits performance. This study numerically investigates the enhancement of thermal efficiency in LHTESSs using n...
In this paper, an equation describing nonlinear wave phenomena on the surface of magnetically active plasma in the approximation of the complete homogeneity of processes along the direction of the constant magnetic field is obtained. One of its solut...
The shape parameters and energy spectra of the decoupled h11/2 bands in isotopes Ru99,101,103, 101,103,105,107Pd and 101,103,105,107Cd are analyzed using the particle-plus-rotor model and cranked shell model calculations. The quasiparticle-plus-rotor...
This study presents a theoretical investigation into the interference properties of three photons in a six-port optical beam splitter, commonly referred to as a tritter. We examine various configurations of the relative phase differences among the in...
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