Title
Higher Order Composite DG approximations of Gross–Pitaevskii ground state: Benchmark results and experiments
Abstract
Discontinuous Galerkin composite finite element methods (DGCFEM) are designed to tackle approximation problems on complicated domains. Partial differential equations posed on complicated domain are common when there are mesoscopic or local phenomena which need to be modelled at the same time as macroscopic phenomena. In this paper, an optical lattice will be used to illustrate the performance of the approximation algorithm for the ground state computation of a Gross–Pitaevskii equation, which is an eigenvalue problem with eigenvector nonlinearity. We will adapt the convergence results of Marcati and Maday 2018 to this particular class of discontinuous approximation spaces and benchmark the performance of the classic symmetric interior penalty hp-adaptive algorithm against the performance of the hp-DGCFEM.
Year
DOI
Venue
2022
10.1016/j.cam.2021.113652
Journal of Computational and Applied Mathematics
Keywords
DocType
Volume
65N35,65M60,78M10
Journal
400
ISSN
Citations 
PageRank 
0377-0427
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Christian Engström100.34
Stefano Giani2369.55
luka grubisic332.80