Quenched topological boundary modes can persist in a trivial system

[摘要] Floquet topological engineering describes the driving of a topologically trivial system into transitory non-trivial state and there are many open questions about the underlying mechanisms. Here, the authors theoretically investigate the time evolution of a topological mode when the bulk band structure is driven into a topologically trivial structure, and show that it can survive unexpectedly long in a "frozen” regime, before gradually disappearing in the "melting” regime.

[学科分类] 地球科学(综合)