Author Affiliations
1College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China2Laboratory of Atomic Molecular Physics and Functional Material, Lanzhou 730070, China3Department of Basic Course, Lanzhou Institute of Technology, Lanzhou 730050, Chinashow less
Fig. 1. Profiles of singl-hump gap solitons of the cubic-quintic GPE (
): (a), (b)
= 0.1; (c), (d)
= 0.99. Shaded regions represent lattice sites, i.e., regions of low potential values
.
3−5次GPE的单峰带隙孤子(
) (a), (b)
; (c), (d)
. 阴影部分表示外势
低处
Fig. 2. Amplitudes of single-hump gap solitons v.s. nonlinear interaction strength.单峰带隙孤子的振幅随相互作用强度的变化(
)
Fig. 3. The ratio of three-body energy to two-body energy for on-site solitons with different interaction strength.on-site孤子三体相互作用能量和两体相互作用能量的比
Fig. 4. Profiles of double-hump gap solitons of the cubic-quintic GPE (
) (a), (b)
= 0.1; (c), (d)
= 0.99. Shaded regions represent lattice sites, i.e., regions of low potential values
.
3−5次GPE的同相偶极孤子和异相偶极孤子(
) (a), (b)
(c), (d)
. 阴影部分表示外势
低处
Fig. 5. Contour plots of
for perturbed gap solitons: (a) On-site soliton; (b) in-phase dipole soliton; (c), (d) out-phase dipole soliton.
不同类型带隙孤子的动力学演化 (a) on-site孤子; (b) 同相偶极孤子; (c), (d) 异相偶极孤子
Fig. 6. (a), (c) Profiles of sub-fundamental gap solitons (red lines) lie in the first bandgap. The solid blue lines denote the external potential; (b), (d) contour plots of
for perturbed gap solitons.
(a), (c) 第一带隙中的亚基本带隙孤子(红色). 蓝线表示外势; (b), (d) 亚基本带隙孤子的动力学演化
Fig. 7. Contour plots of
for in-phase dipole solitons lie in the first bandgap with (a)
and (b)
.
第一带隙中同相偶极孤子 (a)
和(b)
时的动力学演化