Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials GPETR Center for Quantum Precision Measurement and SPTE South China Normal University Guangzhou 510006 China;
Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials GPETR Center for Quantum Precision Measurement and SPTE South China Normal University Guangzhou 510006 ChinaNational Laboratory of Solid State Microstructures School of Physics Nanjing University Nanjing 210093 China;
topological insulators; non-Hermitian systems; localization properties;