【摘要】 利用离散方法讨论了带有2个幂次非线性项的Schrdinger方程的4个差分格式,得出了保持电荷守恒和隐式能量守恒以及这些格式的截断误差.最后,通过数值例子验证了算法的有效性.更多还原

【Abstract】 Four finite difference schemes are discussed by discrete methods for a kind of Schrdinger equation with two power-law nonlinear terms.The schemes preserve charge and implicit energy conservation laws exactly.And their numerical errors are estimated.Lastly,numerical tests show that the constructed schemes are efficient.更多还原