Non-Hermitian higher-order topological superconductors in two dimensions: Statics and dynamics

AK Ghosh, T Nag - Physical Review B, 2022 - APS
Being motivated by intriguing phenomena, such as the breakdown of conventional bulk
boundary correspondence and the emergence of skin modes in the context of non-Hermitian …

Hierarchy of higher-order Floquet topological phases in three dimensions

T Nag, V Juričić, B Roy - Physical Review B, 2021 - APS
Following a general protocol of periodically driving static first-order topological phases
(supporting surface states) with suitable discrete symmetry breaking Wilson-Dirac masses …

Hierarchy of higher-order topological superconductors in three dimensions

AK Ghosh, T Nag, A Saha - Physical Review B, 2021 - APS
After exploring much on two-dimensional higher-order topological superconductors
(HOTSCs) hosting Majorana corner modes (MCMs) only, we propose a simple fermionic …

Floquet higher-order topological insulator in a periodically driven bipartite lattice

W Zhu, YD Chong, J Gong - Physical Review B, 2021 - APS
Floquet higher-order topological insulators (FHOTIs) are a novel topological phase that can
occur in periodically driven lattices. An appropriate experimental platform to realize FHOTIs …

Systematic generation of the cascade of anomalous dynamical first-and higher-order modes in Floquet topological insulators

AK Ghosh, T Nag, A Saha - Physical Review B, 2022 - APS
After extensive investigation of the Floquet second-order topological insulator (FSOTI) in two
dimensions, here we propose two driving schemes to systematically engineer the hierarchy …

Topological invariants for anomalous floquet higher-order topological insulators

B Huang - Frontiers of Physics, 2023 - Springer
We review the recent development in constructing higher-order topological band insulators
under strong periodic drivings. In particular, we focus on various approaches in formulating …

Floquet Weyl semimetal phases in light-irradiated higher-order topological Dirac semimetals

ZM Wang, R Wang, JH Sun, TY Chen, DH Xu - Physical Review B, 2023 - APS
Floquet engineering, the concept of tailoring a system by a periodic drive, is increasingly
exploited to design and manipulate topological phases of matter. In this work we study …

Fractionalized prethermalization in a driven quantum spin liquid

HK **, J Knolle, M Knap - Physical Review Letters, 2023 - APS
Quantum spin liquids subject to a periodic drive can display fascinating nonequilibrium
heating behavior because of their emergent fractionalized quasiparticles. Here, we …

Weyl nodes with higher-order topology in an optically driven nodal-line semimetal

XL Du, R Chen, R Wang, DH Xu - Physical Review B, 2022 - APS
Creating and manipulating topological states is a key goal of condensed matter physics.
Periodic driving offers a powerful method to manipulate electronic states, and even to create …

Dynamical construction of quadrupolar and octupolar topological superconductors

AK Ghosh, T Nag, A Saha - Physical Review B, 2022 - APS
We propose a three-step periodic drive protocol to engineer two-dimensional (2D) Floquet
quadrupole superconductors and three-dimensional (3D) Floquet octupole superconductors …