摘要
In this paper,we formulate a two-way interfacial condition for simulating lattice dynamics in one space dimension.With a time history treatment,the incoming waves are incorporated into the motion of the boundary atoms accurately.This condition reduces to the absorbing boundary condition when there is no incoming wave.Numerical tests validate the effectiveness of the proposed condition in treating simultaneously incoming waves and outgoing waves.
基金
supported in part by NSFC under contract number 10872004,National Basic Research Program of China under contract number 2007CB814800 and 2010CB731500
the Ministry of Education of China under contract numbers NCET-06-0011 and 200800010013.
