中国物理B ›› 2006, Vol. 15 ›› Issue (1): 39-44.doi: 10.1088/1009-1963/15/1/007
米贤武1, 邓科1, 李德俊2, 唐翌3
Li De-Jun (李德俊)ab, Mi Xian-Wu (米贤武)a, Deng Ke (邓科)a, Tang Yi (唐翌)b
摘要: By use of the Hartree approximation and the method of multiple scales, we investigate quantum solitons and intrinsic localized modes in a one-dimensional antiferromagnetic chain. It is shown that there exist solitons of two different quantum frequency bands: i.e., magnetic optical solitons and acoustic solitons. At the boundary of the Brillouin zone, these solitons become quantum intrinsic localized modes: their quantum eigenfrequencies are below the bottom of the harmonic optical frequency band and above the top of the harmonic acoustic frequency band.
中图分类号: (Solitons)