Topologically protected edge gap solitons of interacting Bosons in one-dimensional superlattices<xref rid="cpb_27_6_060307_fn1" ref-type="fn">*</xref> <fn id="cpb_27_6_060307_fn1"> <label>*</label> <p>Project supported by the Natural Science Foundation of Hebei Province, China (Grant Nos. A2012203174 and A2015203387) and the National Natural Science Foundation of China (Grant Nos. 10974169 and 11304270).</p> </fn>

Topologically protected edge gap solitons of interacting Bosons in one-dimensional superlattices* *

Project supported by the Natural Science Foundation of Hebei Province, China (Grant Nos. A2012203174 and A2015203387) and the National Natural Science Foundation of China (Grant Nos. 10974169 and 11304270).

Guo Xi-Hua, Xu Tian-Fu^†, Liu Cheng-Shi^‡

(color online) Nonlinear energies as a function of the phase δ from Eq. (1). The interaction parameter has been taken as g = 300. (a) Results for the periodic potential V(x) without disorder. (b) Results for a disordered potential V(x) + V_r(x). (c) Comparison of the periodic potential V(x) (blue solid line) and the disorder potential V(x) + V_r(x) (black dashed line).