Results 11 to 20 of about 3,077 (172)

A Nonlinear Schrödinger Equation Resonating at an Essential Spectrum

open access: yesAdvances in Mathematical Physics, 2016
We consider the nonlinear Schrödinger equation -Δu+f(u)=V(x)u  in  RN. The potential function V satisfies that the essential spectrum of the Schrödinger operator -Δ-V is [0,+∞) and this Schrödinger operator has infinitely many negative eigenvalues ...
Shaowei Chen, Haijun Zhou
doaj   +1 more source

Extension of the Schrodinger equation

open access: yesEPJ Web of Conferences, 2017
Extension of the Schrodinger equation is submitted by removing its limitations appearing due to the limitations of the formalism of Hamilton, based on which this equation was obtained.
Somsikov Vyacheslav
doaj   +1 more source

Minimal thinness with respect to the Schrödinger operator and its applications on singular Schrödinger-type boundary value problems

open access: yesBoundary Value Problems, 2019
The application of the new criteria for minimally thin sets with respect to the Schrödinger operator to an approximate solution of singular Schrödinger-type boundary value problems are discussed in this study.
Bo Meng
doaj   +1 more source

Maslov complex germ and semiclassical contracted states in the Cauchy problem for the Schrödinger equation with delta potential

open access: yesСовременная математика: Фундаментальные направления, 2022
We describe the semiclassical asymptotic behavior of the solution of the Cauchy problem for the Schrödinger equation with a delta potential localized on a surface of codimension 1.
A. I. Shafarevich, O. A. Shchegortsova
doaj   +1 more source

Dynamics of Different Nonlinearities to the Perturbed Nonlinear Schrödinger Equation via Solitary Wave Solutions with Numerical Simulation

open access: yesFractal and Fractional, 2021
This paper investigates the solitary wave solutions for the perturbed nonlinear Schrödinger equation with six different nonlinearities with the essence of the generalized classical derivative, which is known as the beta derivative.
Asim Zafar   +6 more
doaj   +1 more source

Quantization of a 3D Nonstationary Harmonic plus an Inverse Harmonic Potential System

open access: yesAdvances in Mathematical Physics, 2016
The Schrödinger solutions for a three-dimensional central potential system whose Hamiltonian is composed of a time-dependent harmonic plus an inverse harmonic potential are investigated.
Salim Medjber   +3 more
doaj   +1 more source

Koopman–von Neumann approach to quantum simulation of nonlinear classical dynamics

open access: yesPhysical Review Research, 2020
Quantum computers can be used to simulate nonlinear non-Hamiltonian classical dynamics on phase space by using the generalized Koopman–von Neumann formulation of classical mechanics.
Ilon Joseph
doaj   +1 more source

Exact WKB methods in SU(2) Nf = 1

open access: yesJournal of High Energy Physics, 2022
We study in detail the Schrödinger equation corresponding to the four dimensional SU(2) N $$ \mathcal{N} $$ = 2 SQCD theory with one flavour. We calculate the Voros symbols, or quantum periods, in four different ways: Borel summation of the WKB series ...
Alba Grassi, Qianyu Hao, Andrew Neitzke
doaj   +1 more source

The Exact Nonrelativistic Energy Eigenvalues for Modified Inversely Quadratic Yukawa Potential Plus Mie-type Potential [PDF]

open access: yesЖурнал нано- та електронної фізики, 2017
The modified theories of noncommutative quantum mechanics have engrossed much attention in the last decade, especially its application to the fundamental three equations: Schrödinger, Klein-Gordon and Dirac equations.
Abdelmadjid Maireche
doaj   +1 more source

A Regularised Total Least Squares Approach for 1D Inverse Scattering

open access: yesMathematics, 2022
We study the inverse scattering problem for a Schrödinger operator related to a static wave operator with variable velocity, using the GLM (Gelfand–Levitan–Marchenko) integral equation.
Andreas Tataris, Tristan van Leeuwen
doaj   +1 more source

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