Results 11 to 20 of about 1,721 (138)

Nonlinear Schrödinger Equation for Description of Small-amplitude Spin Waves in Multilayer Magnetic Materials [PDF]

open access: yesЖурнал нано- та електронної фізики, 2016
In the framework of the description of spin waves in multilayer magnetic materials the nonlinear Schrödinger equation with the system of -functional potentials was derived.
I.V. Gerasimchuk   +2 more
doaj   +1 more source

Binary Darboux transformation and interactions of solitons for a higher-order matrix nonlinear Schrödinger equation

open access: yesResults in Physics, 2023
In this paper, we present two- and three-soliton solutions for a higher-order matrix nonlinear Schrödinger equation based on the binary Darboux transform constructed, and analyze various types of interaction properties of solitons.
Mengyao Guo, Xiyang Xie
doaj   +1 more source

Analytical Method for Generalized Nonlinear Schrödinger Equation with Time-Varying Coefficients: Lax Representation, Riemann-Hilbert Problem Solutions

open access: yesMathematics, 2022
In this paper, a generalized nonlinear Schrödinger (gNLS) equation with time-varying coefficients is analytically studied using its Lax representation and the associated Riemann-Hilbert (RH) problem equipped with a symmetric scattering matrix in the ...
Bo Xu, Sheng Zhang
doaj   +1 more source

Rapidity distribution within the defocusing non-linear Schrödinger equation model

open access: yesSciPost Physics Core, 2023
We consider the classical field integrable system whose evolution equation is the nonlinear Schrödinger equation with defocusing non-linearities, which is the classical limit of the quantum Lieb-Liniger model.
Yasser Bezzaz, Léa Dubois, Isabelle Bouchoule
doaj   +1 more source

Effects of Applied Magnetic Field on the Optical Properties and Binding Energies Spherical GaAs Quantum Dot with Donor Impurity

open access: yesNanomaterials, 2022
The screened modified Kratzer potential (SMKP) model is utilized to scrutinize the impacts of an applied magnetic field (MF) on the binding energies and linear and nonlinear optical properties spherical GaAs quantum dot with donor impurity (DI).
Collins Okon Edet   +7 more
doaj   +1 more source

Spectral statistics of chaotic many-body systems

open access: yesNew Journal of Physics, 2016
We derive a trace formula that expresses the level density of chaotic many-body systems as a smooth term plus a sum over contributions associated to solutions of the nonlinear Schrödinger (or Gross–Pitaevski) equation.
Rémy Dubertrand, Sebastian Müller
doaj   +1 more source

Quantum dissipation of a heavy quark from a nonlinear stochastic Schrödinger equation

open access: yesJournal of High Energy Physics, 2018
We study the open system dynamics of a heavy quark in the quark-gluon plasma using a Lindblad master equation. Applying the quantum state diffusion approach by Gisin and Percival, we derive and numerically solve a nonlinear stochastic Schrödinger ...
Yukinao Akamatsu   +3 more
doaj   +1 more source

Random walk and non-Gaussianity of the 3D second-quantized Schrödinger–Newton nonlocal soliton

open access: yesNew Journal of Physics, 2023
Nonlocal quantum fluids emerge as dark-matter models and tools for quantum simulations and technologies. However, strongly nonlinear regimes, like those involving multi-dimensional self-localized solitary waves, are marginally explored for what concerns ...
Claudio Conti
doaj   +1 more source

Rashba effect on linear and nonlinear optical properties of a cylindrical core/shell heterojunction quantum dot

open access: yesFrontiers in Physics, 2022
Rashba effect may play an important role in the nonlinear optical properties of heterojunction quantum dots. In this work, we have theoretically examined the effects of Rashba spin-orbit interaction on an electron in a cylindrical core/shell quantum dot (
M. Kria   +14 more
doaj   +1 more source

Optical properties of two-dimensional two-electron quantum dot in parabolic confinement

open access: yesOpen Physics, 2021
The Hamiltonian and wavefunctions of two-dimensional two-electron quantum dots (2D2eQD) in parabolic confinement are determined. The ground and excited state energies are calculated solving the Schrödinger equation analytically and numerically.
Woldemariam Menberu Mengesha
doaj   +1 more source

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