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Solutions of time-independent Schrodinger equation for potentials periodic in space satisfy Bloch theorem. The theorem has been used to obtain solutions of the Schrodinger equation for periodic systems by expanding them in terms of plane…

计算物理 · 物理学 2013-11-19 Manoj K. Harbola

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

A method is given to construct globally analytic (in space and time) exact solutions to the focusing cubic nonlinear Schrodinger equation on the line. An explicit formula and its equivalents are presented to express such exact solutions in…

可精确求解与可积系统 · 物理学 2007-09-12 Tuncay Aktosun , Francesco Demontis , Cornelis van der Mee

A variationally improved Sturmian approximation for solving time-independent Schr\"odinger equation is developed. This approximation is used to obtain the energy levels of a quartic anharmonic oscillator, a quartic potential, and a Gaussian…

量子物理 · 物理学 2009-11-07 Ali Mostafazadeh

We show that the solution obtained by Bekkar {\it et al.} in their comment [Phys. Rev. A {\bf 68}, 016101 (2003)] on Guedes's work of solving the quantum system with a time-dependent linear potential is still {\it not} the {\it general} one…

量子物理 · 物理学 2007-05-23 Jian Qi Shen

We produce an exact solution of the Schr\"odinger equation for the generalized time dependent Swanson oscillator. The system studied is a non-Hermitian setup characterized by time dependent complex coefficients. The exact solution is…

量子物理 · 物理学 2023-05-10 B. M. Villegas-Martinez , H. M. Moya-Cessa , F. Soto-Eguibar

We prove in this paper that the solution of the time-dependent Schr{\"o}dinger equation can be expressed as the solution of a global space-time quadratic minimization problem that is amenable to Galerkin time-space discretization schemes,…

数值分析 · 数学 2026-04-08 Mi-Song Dupuy , Virginie Ehrlacher , Clément Guillot

We suggest an effective approach to separation of variables in the Schr\"odinger equation with two space variables. Using it we classify inequivalent potentials $V(x_1,x_2)$ such that the corresponding Schr\" odinger equations admit…

solv-int · 物理学 2009-10-28 Renat Z. Zhdanov , Ihor V. Revenko , Wilhelm I. Fushchych

We prove Strichartz-type estimates for Schroedinger's equation with time-dependent potentials. The time derivative of the potentials need not be integrable, so the total variation of the potentials may be infinite.

偏微分方程分析 · 数学 2014-10-15 Marius Beceanu

This second part deals with applications of a general method to describe the quantum time evolution determined by a Schroedinger equation with time-dependent Hamiltonian. A new aspect of our approach is that we find all solutions starting…

数学物理 · 物理学 2008-05-30 Maciej Kuna , Jan Naudts

The present letter obtains the exact solution and geometric phase of the time-dependent Schr\"{o}dinger equation governing the dipole oscillator in the exterior electric field, by making use of the Lewis-Riesenfeld invariant theory and the…

数学物理 · 物理学 2007-05-23 Jian Qi Shen

In this paper, a Hirota method is developed for applying to the nonlinear Schr\"odinger equation with arbitrary time-dependent linear potential which denotes the dynamics of soliton solutions in quasi-one-dimensional Bose-Einstein…

其他凝聚态物理 · 物理学 2010-12-30 Zai-Dong Li , Qiu-Yan Li , Xing-Hua Hu , Zhong-Xi Zheng , Yu-Bao Sun

We discuss the observability of a one-dimensional Schr\"odinger equation on certain time dependent domain. In linear moving case, we give the exact boundary and pointwise internal observability for arbitrary time. For the general moving, we…

最优化与控制 · 数学 2018-01-30 Duc-Trung Hoang

Time-dependent quantum mechanics provides an intuitive picture of particle propagation in external fields. Semiclassical methods link the classical trajectories of particles with their quantum mechanical propagation. Many analytical results…

介观与纳米尺度物理 · 物理学 2008-03-07 Tobias Kramer , Eric J. Heller , Robert E. Parrott

An embedding method for solving the time-dependent Schr\"odinger equation is developed using the Dirac-Frenkel variational principle. Embedding allows the time-evolution of the wavefunction to be calculated explicitly in a limited region of…

介观与纳米尺度物理 · 物理学 2015-05-27 J. E. Inglesfield

A global solution of the Schr\"odinger equation for explicitly time-dependent Hamiltonians is derived by integrating the non-linear differential equation associated with the time-dependent wave operator. A fast iterative solution method is…

量子物理 · 物理学 2015-05-18 Arnaud Leclerc , Georges Jolicard

In this paper, the trial function method is employed to find the exact solutions for high-order nonlinear Schr\"odinger equations with time-dependent coefficients. This system describes the propagation of ultrashort light pulses in…

斑图形成与孤子 · 物理学 2020-10-15 Xin-Lei Mai , Wei Li

We present a novel approach for solving the time-dependent Schr\"{o}dinger equation (TDSE). The method we propose converts the TDSE to an equivalent Volterra integral equation; introducing a global Lagrange interpolation of the integrand…

数值分析 · 数学 2023-06-07 Ryan Schneider , Heman Gharibnejad , Barry I. Schneider

It is well-known that time-dependent Schr\"{o}dinger equation can only be exactly solvable in very rare cases, even for two-level quantum systems. Therefore, finding exact quantum dynamics under time-dependent Hamiltonian is not only of…

量子物理 · 物理学 2024-12-17 Zhi-Cheng He , Yi-Xuan Wu , Zheng-Yuan Xue

We construct an explicit solution of the Cauchy initial value problem for the n-dimensional Schroedinger equation with certain time-dependent Hamiltonian operator of a modified oscillator. The dynamical SU(1,1) symmetry of the harmonic…

数学物理 · 物理学 2009-11-13 Maria Meiler , Ricardo Cordero-Soto , Sergei K. Suslov