2 papers
cond-mat.mes-hall2024
Characterizing generalized Floquet topological states in hybrid space-time dimensions
Weiwei Zhu, Jian-Hua Jiang
In spatiotemporally modulated systems, topological states exist not only in energy gaps but also in momentum gaps. Such unconventional topological states impose challenges on topol…
cond-mat.mes-hall2024
Floquet Exceptional Points
Weiwei Zhu
We report a new kind of exceptional points in periodically driven system, called Floquet exceptional points, whose eigenvectors rotate on Bloch sphere and accumulate geomet…