Convergence analysis of high-order time-splitting pseudospectral methods for nonlinear Schrödinger equations

M Thalhammer - SIAM Journal on Numerical Analysis, 2012 - SIAM
In this work, the issue of favorable numerical methods for the space and time discretization
of low-dimensional nonlinear Schrödinger equations is addressed. The objective is to …

Efficient bond-adaptive approach for finite-temperature open quantum dynamics using the one-site time-dependent variational principle for matrix product states

AJ Dunnett, AW Chin - Physical Review B, 2021 - APS
Recent tensor network techniques for simulating system-environment wave functions have
provided profound insights into non-Markovian dissipation and decoherence in open …

Regularized numerical methods for the logarithmic Schrödinger equation

W Bao, R Carles, C Su, Q Tang - Numerische Mathematik, 2019 - Springer
We present and analyze two numerical methods for the logarithmic Schrödinger equation
(LogSE) consisting of a regularized splitting method and a regularized conservative Crank …

Some facts about operator-splitting and alternating direction methods

R Glowinski, TW Pan, XC Tai - Splitting Methods in Communication …, 2016 - Springer
The main goal of this chapter is to give the reader a (relatively) brief overview of operator-
splitting, augmented Lagrangian and ADMM methods and algorithms. Following a general …

High Order Exponential Integrators for Nonlinear Schrödinger Equations with Application to Rotating Bose--Einstein Condensates

C Besse, G Dujardin, I Lacroix-Violet - SIAM Journal on Numerical Analysis, 2017 - SIAM
This article deals with the numerical integration in time of nonlinear Schrödinger
equations. The main application is the numerical simulation of rotating Bose--Einstein …

Lie-Trotter operator splitting spectral method for linear semiclassical fractional Schrödinger equation

W Wang, Y Huang, J Tang - Computers & Mathematics with Applications, 2022 - Elsevier
In this paper the error estimates are derived for Lie-Trotter operator splitting spectral method
for semiclassical linear fractional Schrödinger equation. We first establish a priori estimates …

Error estimates of local energy regularization for the logarithmic Schrödinger equation

W Bao, R Carles, C Su, Q Tang - Mathematical Models and Methods …, 2022 - World Scientific
The logarithmic nonlinearity has been used in many partial differential equations (PDEs) for
modeling problems in various applications. Due to the singularity of the logarithmic function …

[HTML][HTML] A numerical study of adaptive space and time discretisations for Gross–Pitaevskii equations

M Thalhammer, J Abhau - Journal of computational physics, 2012 - Elsevier
As a basic principle, benefits of adaptive discretisations are an improved balance between
required accuracy and efficiency as well as an enhancement of the reliability of numerical …

Analysis of operator splitting in the nonasymptotic regime for nonlinear reaction-diffusion equations. Application to the dynamics of premixed flames

S Descombes, M Duarte, T Dumont, F Laurent… - SIAM Journal on …, 2014 - SIAM
In this paper we mathematically characterize through a Lie formalism the local errors
induced by operator splitting when solving nonlinear reaction-diffusion equations, especially …

On Fourier time-splitting methods for nonlinear Schrödinger equations in the semiclassical limit

R Carles - SIAM Journal on Numerical Analysis, 2013 - SIAM
We prove an error estimate for a Lie--Trotter splitting operator associated with the
Schrödinger--Poisson equation in the semiclassical regime, when the WKB approximation …