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Effects of Intense Laser Field on Electronic and Optical Properties of Harmonic and Variable Degree Anharmonic Oscillators [PDF]

open access: yesNanomaterials, 2022
In this paper, we calculated the electronic and optical properties of the harmonic oscillator and single and double anharmonic oscillators, including higher-order anharmonic terms such as the quartic and sextic under the non-resonant intense laser field.
Melike Behiye Yücel   +2 more
doaj   +2 more sources

Quartic anharmonic many-body oscillator [PDF]

open access: yes, 2004
Two quantum quartic anharmonic many-body oscillators are introduced. One of them is the celebrated Calogero model (rational $A_n$ model) modified by quartic anharmonic two-body interactions which support the same symmetry as the Calogero model.
Turbiner, Alexander V.
core   +2 more sources

Anharmonic Oscillators with Infinitely Many Real Eigenvalues and PT-Symmetry [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2010
We study the eigenvalue problem −u''+V(z)u=λu in the complex plane with the boundary condition that u(z) decays to zero as z tends to infinity along the two rays arg z=−π/2± 2π(m+2), where V(z)=−(iz)^m−P(iz) for complex-valued polynomials P of degree at ...
Kwang C. Shin
doaj   +4 more sources

Strange waves in the ensemble of van der Pol oscillators [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2020
The purpose of this paper is to study the processes of spatial disorder and the development of phase multistability in a discrete medium of anharmonic oscillators. Methods.
Shabunin, Aleksej Vladimirovich
doaj   +1 more source

Quantum Anharmonic Oscillators: A Truncated Matrix Approach

open access: yesPositron, 2021
This study aims at implementing a truncated matrix approach based on harmonic oscillator eigenfunctions to calculate energy eigenvalues of anharmonic oscillators containing quadratic, quartic, sextic, octic, and decic anharmonicities. The accuracy of the
Redi Kristian Pingak   +3 more
doaj   +1 more source

$L^p$-$L^q$ Boundedness of Spectral Multipliers of the Anharmonic Oscillator

open access: yesComptes Rendus. Mathématique, 2022
In this note we study the $L^p-L^q$ boundedness of Fourier multipliers of anharmonic oscillators, and as a consequence also of spectral multipliers, for the range ...
Chatzakou, Marianna, Kumar, Vishvesh
doaj   +1 more source

First and Second-Order Energy Eigenvalues of One-Dimensional Quantum Harmonic and Anharmonic Oscillator with Linear, Quadratic, Cubic and Polynomial Perturbation Potential

open access: yesASM Science Journal, 2022
This work is aimed at obtaining the energy eigenvalues for one-dimensional quantum harmonic and anharmonic oscillators perturbed by linear, quadratic, cubic and polynomial potentials.
B.I Madububa   +4 more
doaj   +1 more source

New analytical solution of the fractal anharmonic oscillator using an ancient Chinese algorithm: Investigating how plasma frequency changes with fractal parameter values

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2022
This paper uses the two-scale fractal dimension transform and He’s formula derived from the ancient Chinese algorithm Ying Bu Zu Shu to find the approximate frequency–amplitude expression of the fractal and forced anharmonic oscillator that can be used ...
Alex Elías-Zúñiga   +3 more
doaj   +1 more source

Point Charge Subject to an Attractive Inverse-Square-Type Potential and Anharmonic-Type Potentials

open access: yesUniverse, 2023
By applying the WKB (Wentzel, Kramers, Brillouin) approximation, we search for bound state solutions to the time-independent Schrödinger equation for an attractive inverse-square potential and anharmonic oscillators that stem from the interaction of a ...
Jardel de Carvalho Veloso, Knut Bakke
doaj   +1 more source

Anharmonic oscillator: a solution [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2021
It is shown that for the one-dimensional quantum anharmonic oscillator with potential $V(x)= x^2+g^2 x^4$ the Perturbation Theory (PT) in powers of $g^2$ (weak coupling regime) and the semiclassical expansion in powers of $\hbar$ for energies coincide. It is related to the fact that the dynamics in $x$-space and in $(gx)$-space corresponds to the same ...
Alexander V Turbiner, J C del Valle
openaire   +3 more sources

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