中国物理B ›› 2008, Vol. 17 ›› Issue (10): 3841-3846.doi: 10.1088/1674-1056/17/10/050
刘 洋, 唐 翌
Liu Yang(刘洋) and Tang Yi(唐翌)†
摘要: By means of the Glauber's coherent state method combined with multiple-scale method, this paper investigates the localized modes in a quantum one-dimensional Klein--Gordon chain and finds that the equation of motion of annihilation operator is reduced to the nonlinear Schr\"{o}dinger equation. Interestingly, the model can support both bright and dark small amplitude travelling and non-travelling nonlinear localized modes in different parameter spaces.
中图分类号: (Solutions of wave equations: bound states)