Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/24711
Title: 
Authors: 
Issue Date: 
2022
Citation: 
Koor, K., Bomantara, R. W., & Kwek, L. C. (2022). Symmetry-protected topological corner modes in a periodically driven interacting spin lattice. Physical Review B, 106(19), Article 195122. https://doi.org/10.1103/physrevb.106.195122
Journal: 
Physical Review B
Abstract: 
Periodic driving has a longstanding reputation for generating exotic phases of matter with no static counterparts. This work explores the interplay between periodic driving, interaction effects, and Z2 symmetry that leads to the emergence of Floquet symmetry protected second-order topological phases in a simple but insightful two-dimensional spin-1/2 lattice. Through a combination of analytical and numerical treatments, we verify the formation of corner-localized 0 and π modes, i.e., Z2 symmetry broken operators that commute and anticommute, respectively, with the one-period time evolution operator, as well as establish the topological nature of these modes by demonstrating their presence over a wide range of parameter values and explicitly deriving their associated topological invariants under special conditions. Finally, we propose a means to detect the signature of such modes in experiments, and we discuss the effect of imperfections.
URI: 
ISSN: 
1098-0121 (print)
1550-235X (online)
DOI: 
File Permission: 
None
File Availability: 
No file
Appears in Collections:Journal Articles

Show full item record

Page view(s)

14
checked on Jan 31, 2023

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.