Abstract
Topological notions in physics often emerge from adiabatic evolution of states. It not only leads to fundamental insight of topological protection but also provides an important approach for the study of higher-dimensional topological phases. In this work, we first demonstrate the transfer of topological boundary states (TBSs) across the bulk to the opposite boundary in an acoustic waveguide system. By exploring the finite-size induced minigap between two TBS bands, we unveil the quantitative condition for the breakdown of adiabaticity in the system by demonstrating the Landau-Zener transition with both theory and experiments. Our results not only serve as a foundation of future studies of dynamic state transfer but also inspire applications leveraging nonadiabatic transitions as a new degree of freedom.
Original language | English |
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Article number | 054301 |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 126 |
Issue number | 5 |
Early online date | 1 Feb 2021 |
DOIs | |
Publication status | Published - 5 Feb 2021 |
Scopus Subject Areas
- Physics and Astronomy(all)