3 papers
cond-mat.mes-hall2020
Non-Hermitian Floquet second order topological insulators in periodically quenched lattices
Jiaxin Pan, Longwen Zhou
Higher-order topological phases are characterized by protected states localized at the corners or hinges of the system. By applying time-periodic quenches to a two-dimensional latt…
quant-ph2019
Non-Hermitian Floquet topological phases in the double-kicked rotor
Longwen Zhou, Jiaxin Pan
Dynamical kicking systems possess rich topological structures. In this work, we study Floquet states of matter in a non-Hermitian extension of double kicked rotor model. Under the…
cond-mat.mes-hall2018
Coupled-wire construction of static and Floquet second-order topological insulators
Raditya Weda Bomantara, Longwen Zhou, Jiaxin Pan +1
Second-order topological insulators (SOTI) exhibit protected gapless boundary states at their hinges or corners. In this paper, we propose a generic means to construct SOTIs in sta…