4 papers · 1 filter
Realizing anomalous Floquet non-Abelian band topology in photonic scattering networks
Yuze Hu, Mingyu Tong, Tian Jiang +10
The concept of multi-gap topology has recently been shown to give rise to uncharted phases beyond conventional single-gap classifications. These phases relate to band nodes with no…
Magnetic-free terahertz nonreciprocity via temporal dissipative barriers
Mingyu Tong, Yuze Hu, Siyang Hu +3
Terahertz (THz) nonreciprocal devices are essential for advancing future fundamental science, wireless communications, imaging, and sensing. Current THz nonreciprocal devices mostl…
Ultrafast control of braiding topology in non-Hermitian metasurfaces
Yuze Hu, Mingyu Tong, Ziheng Ren +5
The mathematical theory of braids, influential across scientific disciplines, has emerged as a compelling strategy for light manipulation. Existing approaches to creating braids in…
Observation of non-Abelian band topology without time-reversal symmetry
Yuze Hu, Mingyu Tong, Tian Jiang +3
Going beyond the conventional theory, non-Abelian band topology uncovers the global quantum geometry of Bloch bands with multiple gaps and thus unveil a new paradigm for topologica…