微扰对Φ-4孤子的影响

Effects of Perturbation on a Φ4 Soliton

发展了一种基于拉普拉斯变换的直接方法并用它研究了Φ－４方程的孤子微扰．应用这一方法求出了微扰对孤子的影响，即孤子参数对ｔ１的依赖及一阶修正．

A direct approach based on the Laplace transformation is developed and is employed to study the soliton perturbation for Φ4 equation.By making use of this approach,the effects of perturbation on a soliton,namely,both the t1dependence of soliton parameters and the firstorder correction are derived.