Year: 2020
Type: article
Abstract: Higher-order topological materials with topologically protected states at the boundaries of their boundaries (hinges or corners) have attracted attention in recent years.In this paper, we utilize time-periodic driving to generate second-order topological superconductors out of systems which otherwise do not even allow secondorder topological characterization.This is made possible by the design of periodic drives which inherently exhibit nontrivial winding in the time domain.Through the interplay of topology in both spatial and temporal dimensions, nonchiral Majorana modes may emerge at the systems' corners and sometimes even coexist with chiral Majorana modes.Our proposal thus presents an opportunity for Floquet engineering with minimal system complexity and its application in quantum information processing.
Source: Physical Review Research
Author: Raditya Weda Bomantara
Institution: The University of Sydney
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,625
Funder: Australian Research Council
OpenAlex ID: W3011637532