Non-Hermitian Floquet topological superconductors with multiple Majorana edge modes

L Zhou - Physical Review B, 2020 - APS
Majorana edge modes are candidate elements of topological quantum computing. In this
paper, we propose a Floquet engineering approach to generate multiple non-Hermitian …

Quasiperiodic disorder induced critical phases in a periodically driven dimerized p-wave Kitaev chain

K Roy, S Roy, S Basu - Scientific Reports, 2024 - nature.com
The intricate relationship between topology and disorder in non-equilibrium quantum
systems presents a captivating avenue for exploring localization phenomenon. Here, we …

Universality classes of topological phase transitions with higher-order band crossing

W Chen, AP Schnyder - New Journal of Physics, 2019 - iopscience.iop.org
In topological insulators and topological superconductors, the discrete jump of the
topological invariant upon tuning a certain system parameter defines a topological phase …

Floquet topological superconductors with many Majorana edge modes: Topological invariants, entanglement spectrum and bulk-edge correspondence

H Wu, S Wu, L Zhou - New Journal of Physics, 2023 - iopscience.iop.org
Abstract One-dimensional (1D) Floquet topological superconductors possess two types of
degenerate Majorana edge modes at zero and π quasienergies, leaving more room for the …

Topological phase transitions at finite temperature

P Molignini, NR Cooper - Physical Review Research, 2023 - APS
The ground states of noninteracting fermions in one-dimension with chiral symmetry form a
class of topological band insulators, described by a topological invariant that can be related …

Topological characterization and stability of Floquet Majorana modes in Rashba nanowires

D Mondal, AK Ghosh, T Nag, A Saha - Physical Review B, 2023 - APS
We theoretically investigate a practically realizable Floquet topological superconductor
model based on a one-dimensional Rashba nanowire and proximity-induced s-wave …

Multi-critical topological transition at quantum criticality

RR Kumar, YR Kartik, S Rahul, S Sarkar - Scientific Reports, 2021 - nature.com
The investigation and characterization of topological quantum phase transition between
gapless phases is one of the recent interest of research in topological states of matter. We …

Floquet dynamical quantum phase transitions under synchronized periodic driving

R Jafari, A Akbari, U Mishra, H Johannesson - Physical Review B, 2022 - APS
We study a generic class of fermionic two-band models under synchronized periodic driving,
ie, with the different terms in a Hamiltonian subject to periodic drives with the same …

Generating quantum multicriticality in topological insulators by periodic driving

P Molignini, W Chen, R Chitra - Physical Review B, 2020 - APS
We demonstrate that the prototypical two-dimensional Chern insulator hosts exotic quantum
multicriticality in the presence of an appropriate periodic driving: a linear Dirac-like transition …

Single and multifrequency driving protocols in a Rashba nanowire proximitized to an -wave superconductor

K Roy, S Basu - Physical Review B, 2024 - APS
We perform systematic analyses of single and multifrequency driving protocols on a Rashba
nanowire with superconducting correlations induced by proximity effects. The results for the …