Non-Hermitian Floquet topological matter—a review

L Zhou, DJ Zhang - Entropy, 2023 - mdpi.com
The past few years have witnessed a surge of interest in non-Hermitian Floquet topological
matter due to its exotic properties resulting from the interplay between driving fields and non …

Hybrid skin-topological modes without asymmetric couplings

W Zhu, J Gong - Physical Review B, 2022 - APS
The non-Hermitian skin effect (NHSE) in non-Hermitian lattice systems, associated with a
point gap on the complex energy plane, has attracted great theoretical and experimental …

Observation of Anomalous Modes in Photonic Floquet Engineering

Q Cheng, Y Pan, H Wang, C Zhang, D Yu, A Gover… - Physical review …, 2019 - APS
Recent progress on Floquet topological phases has shed new light on time-dependant
quantum systems, among which one-dimensional (1D) Floquet systems have been under …

Non-Hermitian Floquet topological phases with arbitrarily many real-quasienergy edge states

L Zhou, J Gong - Physical Review B, 2018 - APS
Topological states of matter in non-Hermitian systems have attracted a lot of attention due to
their intriguing dynamical and transport properties. In this paper, we propose a periodically …

Non-Hermitian Floquet topological phases: Exceptional points, coalescent edge modes, and the skin effect

X Zhang, J Gong - Physical Review B, 2020 - APS
Periodically driven non-Hermitian systems can exhibit rich topological band structure and
non-Hermitian skin effect, without analogs in their static or Hermitian counterparts. In this …

Observation of Modes in an Acoustic Floquet System

Z Cheng, RW Bomantara, H Xue, W Zhu, J Gong… - Physical Review Letters, 2022 - APS
Topological phases of matter have remained an active area of research in the last few
decades. Periodic driving is a powerful tool for enriching such exotic phases, leading to …

Floquet dynamical quantum phase transitions

K Yang, L Zhou, W Ma, X Kong, P Wang, X Qin, X Rong… - Physical Review B, 2019 - APS
Dynamical quantum phase transitions (DQPTs) are manifested by time-domain nonanalytic
behaviors of many-body systems. Introducing a quench is so far understood as a typical …

Observation of Floquet topological phases with large Chern numbers

K Yang, S Xu, L Zhou, Z Zhao, T Xie, Z Ding, W Ma… - Physical Review B, 2022 - APS
Floquet engineering offers a powerful approach to the generation of nonequilibrium
topological phases with large topological invariants and hence a proliferation of topological …

Exceptional points in a non-Hermitian topological pump

W Hu, H Wang, PP Shum, YD Chong - Physical Review B, 2017 - APS
We investigate the effects of non-Hermiticity on topological pumping and uncover a
connection between a topological edge invariant based on topological pumping and the …

Floquet topological phases in a spin- double kicked rotor

L Zhou, J Gong - Physical Review A, 2018 - APS
The double kicked rotor model is a physically realizable extension of the paradigmatic
kicked rotor model in the study of quantum chaos. Even before the concept of Floquet …