中国物理B ›› 2013, Vol. 22 ›› Issue (3): 30209-030209.doi: 10.1088/1674-1056/22/3/030209
蔡加祥, 杨斌, 梁华
Cai Jia-Xiang (蔡加祥), Yang Bin (杨斌), Liang Hua (梁华)
摘要: We propose multisymplectic implicit and explicit Fourier pseudospectral methods for the Klein-Gordon-Schrödinger equations. We prove that the implicit method satisfies the charge conservation law exactly. Both methods provide accurate solutions in long-time computations and simulate the soliton collision well. Numerical results show the abilities of the two methods in preserving charge, energy, and momentum conservation laws.
中图分类号: (Numerical simulation; solution of equations)