摘要
A 2D 平方格子被学习。由使用连续统近似，我们在使遭到到一个外部周期的底层潜力的方形的格子为一个任意的粒子建立了运动的微分方程。系统的准确独居的波浪被作出对有利的裁决特殊情况。我们断定粘合剂力量 f 和上面、更低的层的角度 αbetween 繁殖方向能影响这些波浪。
A 2D square lattice is studied. By using the continuum approximation, we set up the differential equations of motion for an arbitrary particle in the square lattice which subjects to an external periodic substrate potential. The exact solitary waves of the system are found for special cases. We conclude that the adhesive force f and the angle between propagation directions of upper and lower layers can affect these waves.
基金
supported by National Natural Science Foundation of China under Grant No. 10575082
the Natural Science Foundation of Gansu Province under Grant No. 3ZS061-A25-013
the Natural Science Foundation of Northwest Normal University under Grant No. NWNU-KJCXGC-03-17
