2 papers
cond-mat.mes-hall2026
Non-Hermitian higher-order topological insulators enabled by altermagnet engineering
Xiang Ji, Dengfeng Wang, Tong Zhou +1
We show that proximity to an altermagnet provides an efficient route to engineering non-Hermitian higher-order topological phases. The proximity-induced altermagnetic order gaps th…
cond-mat.supr-con2025
Floquet engineering of point-gapped topological superconductors
Xiang Ji, Hao Geng, Naeem Akhtar +1
Non-Hermitian systems exhibit two distinct topological classifications based on their gap structure: line-gap and point-gap topologies. Although point-gap topology is intrinsic to…