基于对称与反对称谷边缘态的声能谷输运

施斌杰, 贾鼎, 葛勇

Acoustic valley transport based on antisymmetric and symmetric valley edge states

Binjie Shi, Ding Jia, Yong Ge

图3 两种谷拓扑波导超原胞结构(a)及其色散关系(b),(c)谷边缘态M,N,P和Q的声压场模式分布(虚线表示界面Ⅰ和Ⅱ)

Fig.3 (a) Structures of the supercells of both valley topological waveguides，and (b) their corresponding dispersion relations, (c) pressure distributions of the valley edge states M，N，P and Q (The dashed lines are the domain walls Ⅰ and Ⅱ)