Método conservativo de diferencias finitas de alto orden para una clase de sistemas de Schrödinger no lineales

Authors

  • Axi Aguilera Department of Mathematical Sciences, University of Puerto Rico at Mayaguez
  • Paul Castillo University of Puerto Rico
  • Sergio Gómez Universit`a di Pavia

DOI:

https://doi.org/10.31349/RevMexFisE.19.010205

Keywords:

Nonlinear Schrodinger systems, power and energy conservation, conservative methods, high order finite differences

Abstract

A time method to approximate the solution of a class of nonlinear Schrödinger systems, which preserves the power of each component and the Hamiltonian of the system exactly, is presented. Spatial discretizations based on fourth- and sixth-order explicit and compact finite difference formulas are considered, however higher order formulas could also be used. The time
advancing technique is based on a modification of a conservative Crank-Nicolson scheme, which is applied sequentially to each of the components of the vector field. Conservation of discrete invariants and order of convergence of the method are validated by means of a series of numerical experiments using different nonlinear potentials.

 

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Published

2022-01-01

How to Cite

[1]
A. Aguilera, P. Castillo, and Gómez S. ., “Método conservativo de diferencias finitas de alto orden para una clase de sistemas de Schrödinger no lineales”, Rev. Mex. Fis. E, vol. 19, no. 1 Jan-Jun, pp. 010205 1–, Jan. 2022.

Issue

Vol. 19 No. 1 Jan-Jun (2022): Revista Mexicana de Física E

Section

02 Education in Physics

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Copyright (c) 2021 Axi Aguilera, Paul Castillo, Sergio Gómez

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