3 papers
physics.app-ph2026
Elastic Trapped States at Dislocation Defects in Scaled Coupling and Hofstadter Models
Yangkai Liu, Cheng Lin, Yuan Liu +4
Elastic topological dislocations provide a pathway for trapping elastic wave energy at internal defects, rather than being confined solely to external boundaries or corners, which…
physics.app-ph2026
Chiral Landau levels induced by two in-plane pseudomagnetic fields in underwater acoustic metamaterials
Jiao Shen, Zhiyong Chang, Xinzong Wang +6
The chiral zeroth Landau levels (LLs) constitute topologically protected bulk states that enable robust control of acoustic wave propagation. Given the central role of underwater a…
physics.app-ph2026
Experimental Realization of Type-II Quadrupole Topological Insulator
Yuan Liu, Yangkai Liu, Cheng Lin +4
The discovery of quadrupole topological insulators (QTIs) has spurred extensive research into higher-order topological phases. Recently proposed type-II QTIs exhibit unconventional…