Comparison of Splitting methods for Gross-Pitaevskii Equation

Abstract

In this paper, we discuss the different splitting approaches to solve the Gross-Pitaevskii equation numerically. We consider conservative finite-difference schemes and spectral methods for the spatial discretisation. Further, we apply implicit or explicit time-integrators and combine such schemes with different splitting approaches. The numerical solutions are compared based on the conservation of the $L_2$-norm with the analytical solutions. The advantages of the splitting methods for large time-domains are presented in several numerical examples of different solitons applications.

20 pages, 7 figures

References in corpus (2)

• Theory of Bose-Einstein condensation in trapped gases
• A new class of exact solitary wave solutions of one dimensional Gross-Pitaevskii equation

Cited by in corpus (1)

• Soliton Collision in Random Seas