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A derivation of the time-dependent Schr\"odinger equation from the time-independent one is considered. Instead of time, the coordinate of an additional degree of freedom, the clock, is introduced into the original time-independent…

量子物理 · 物理学 2023-07-27 Nikolay A. Vinokurov

We demonstrate that complex point transformations can be used to construct non-Hermitian first integrals, time-dependent Dyson maps and metric operators for non-Hermitian quantum systems. Initially we identify a point transformation as a…

量子物理 · 物理学 2021-07-27 Andreas Fring , Rebecca Tenney

We study two seminal approaches, developed by B. Simon and J. Kisy\'nski, to the well-posedness of the Schr\"odinger equation with a time-dependent Hamiltonian. In both cases the Hamiltonian is assumed to be semibounded from below and to…

泛函分析 · 数学 2022-01-12 Aitor Balmaseda , Davide Lonigro , Juan Manuel Pérez-Pardo

We apply the Darboux transformation to construct new exactly-solvable cases of the two-dimensional massless Dirac equation for potential classes of Lambert-W and inverse exponential type. Both of these classes originate from the Heun…

量子物理 · 物理学 2020-11-16 A. Schulze-Halberg , A. M. Ishkhanyan

Darboux transformation of both Barut-Girardello and Perelomov coherent states for the time-dependent singular oscillator is studied. In both cases the measure that realizes the resolution of the identity operator in terms of coherent states…

量子物理 · 物理学 2009-11-10 Boris F. Samsonov

We rigorously study the long time dynamics of solitary wave solutions of the nonlinear Schr\"odinger equation in {\it time-dependent} external potentials. To set the stage, we first establish the well-posedness of the Cauchy problem for a…

数学物理 · 物理学 2009-11-13 Walid K. Abou Salem

In this manuscript, we investigate the analytical solution of the time-dependent Schr\"odinger equation for a harmonic oscillator with time-dependent mass and frequency, coupled with angular-dependent potential energy by utilizing the Dunkl…

量子物理 · 物理学 2025-04-15 B. C. Lütfüoğlu , A. Benchikha , B. Hamil , B. Khantoul

We study solutions to the Cauchy problem for the linear and nonlinear Schroedinger equation with a quadratic Hamiltonian depending on time. For the linear case the evolution operator can be expressed as an integral operator with the…

数学物理 · 物理学 2010-04-12 Erwin Suazo

Recently developed simple approach for the exact/approximate solution of Schrodinger equations with constant/position-dependent mass, in which the potential is considered as in the perturbation theory, is shown to be equivalent to the one…

量子物理 · 物理学 2007-05-23 B. Gonul , K. Koksal

The Schrodinger equation is considered with the first order time derivative changed to a Caputo fractional derivative, the time fractional Schrodinger equation. The resulting Hamiltonian is found to be non-Hermitian and non-local in time.…

数学物理 · 物理学 2009-11-10 Mark Naber

We study the representation theory of the solution space of the one-dimensional Schr\"{o}dinger equation with time-dependent potentials that posses $\mathfrak{sl}_2$-symmetry. We give explicit local intertwining maps to multiplier…

表示论 · 数学 2011-04-19 Jose Franco

A spacetime Discontinuous Petrov Galerkin (DPG) method for the linear time-dependent Schrodinger equation is proposed. The spacetime approach is particularly attractive for capturing irregular solutions. Motivated by the fact that some…

数值分析 · 数学 2017-07-25 Leszek Demkowicz , Jay Gopalakrishnan , Sriram Nagaraj , Paulina Sepulveda

The outlook of a simple method to generate localized (soliton-like) potentials of time-dependent Schrodinger type equations is given. The conditions are discussed for the potentials to be real and nonsingular. For the derivative Schrodinger…

solv-int · 物理学 2008-02-03 V. G. Makhankov

In this paper, we present a microscopic derivation of the two-dimensional focusing cubic nonlinear Schr\"odinger equation starting from an interacting $N$-particle system of Bosons. The interaction potential we consider is given by…

数学物理 · 物理学 2018-08-01 M. Jeblick , P. Pickl

We study Darboux transformations associated with the focusing nonlinear Schr\"odinger equation (NLS_-) and their effect on spectral properties of the underlying Lax operator. The latter is a formally J-self-adjoint (but non-self-adjoint)…

可精确求解与可积系统 · 物理学 2007-05-23 Radu C. Cascaval , Fritz Gesztesy , Helge Holden , Yuri Latushkin

The evolution problem for a quantum particle confined in a 1D box and interacting with one fixed point through a time dependent point interaction is considered. Under suitable assumptions of regularity for the time profile of the…

偏微分方程分析 · 数学 2015-05-19 Andrea Mantile

This paper presents the exact ground state solution for a diatomic particle system with position-dependent complex mass under action of a complex Morse potential in the quantum domain. By solving the position-dependent Schr\"odinger…

量子物理 · 物理学 2025-12-24 Partha Sarathi , Bhaskar Singh Rawat

Given the time-evolution of an electron charge density, the local potential in Kohn-Sham time-dependent density functional theory (KS-TDDFT) can be modeled as a sum of instantaneous and dynamic contributions by assuming a certain form of…

计算物理 · 物理学 2016-11-09 R. J. Magyar

We consider parabolic Schr\"odinger type equations associated to fractional powers of uniformly elliptic 2m-order operators with constant coefficients. Potentials and initial data are considered in suitable Morrey spaces. By means of…

偏微分方程分析 · 数学 2024-07-24 Jan W. Cholewa , Anibal Rodriguez-Bernal

We investigate precise structural relations between the standard Schr\"odinger equation and its Carrollian analogue-the Carroll-Schr\"odinger equation-in 1+1 dimensions, with emphasis on dualities, potential maps, and solution behavior. Our…

量子物理 · 物理学 2025-10-27 José Rojas , Enrique Casanova , Melvin Arias