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4 papers · 2 filters
Universal scalefree non-Hermitian skin effect near the Bloch point
Wei Li, Zhoujian Sun, Ze Yang +1
The scalefree non-Hermitian skin effect (NHSE) refers to the phenomenon that the localization length of skin modes scales proportionally with system size in non-Hermitian systems.…
Solution to a class of multistate Landau-Zener model beyond integrability conditions
Rongyu Hu, Fuxiang Li, Chen Sun
We study a class of multistate Landau-Zener model which cannot be solved by integrability conditions or other standard techniques. By analyzing analytical constraints on its scatte…
Security boundaries of an optical power limiter for protecting quantum key distribution systems
Qingquan Peng, Binwu Gao, Konstantin Zaitsev +7
Unauthorized light injection has always been a vital threat to the practical security of a quantum key distribution (QKD) system. An optical power limiter (OPL) based on the thermo…
Dynamical characterization of topological phases beyond the minimal models
Xi Wu, Panpan Fang, Fuxiang Li
Dynamical characterization of topological phases under quantum quench dynamics has been demonstrated as a powerful and efficient tool. Previous studies have been focused on systems…