Topological magnetoplasmon
Name
Topological magnetoplasmon.pdf
Size
1.02 MB
Format
Adobe PDF
Checksum (MD5)
2f098f1ee36cb9d90e67fe5e9b425971
Author(s)
Wang, Zhong
Jin, Dafei
Fang, Xuanlai
Lu, Ling
Fang, Chen
Joannopoulos, John
Soljacic, Marin
Fu, Liang
Date Issued
November 2016
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Jin, Dafei; Lu, Ling; Wang, Zhong; Fang, Chen; Joannopoulos, John D.; Soljačić, Marin; Fu, Liang and Fang, Nicholas X. “Topological Magnetoplasmon.” Nature Communications 7 (November 2016): 13486. © 2016 The Author(s)
Version
Final published version
Abstract
Classical wave fields are real-valued, ensuring the wave states at opposite frequencies and momenta to be inherently identical. Such a particle–hole symmetry can open up new possibilities for topological phenomena in classical systems. Here we show that the historically studied two-dimensional (2D) magnetoplasmon, which bears gapped bulk states and gapless one-way edge states near-zero frequency, is topologically analogous to the 2D topological p+ip superconductor with chiral Majorana edge states and zero modes. We further predict a new type of one-way edge magnetoplasmon at the interface of opposite magnetic domains, and demonstrate the existence of zero-frequency modes bounded at the peripheries of a hollow disk. These findings can be readily verified in experiment, and can greatly enrich the topological phases in bosonic and classical systems.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/ncomms13486
