Photonic Topological Mode Bound to a Vortex

We report the observation of a mode associated with a topological defect in the bulk of a 2D photonic material by introducing a vortex distortion to a hexagonal lattice analogous to graphene. The observed modes lie midgap at zero energy and are closely related to Majorana bound states in superconduc...

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Bibliographic Details
Published in:Physical review letters 2020-09, Vol.125 (11), p.1-117401, Article 117401
Main Authors: Menssen, Adrian J., Guan, Jun, Felce, David, Booth, Martin J., Walmsley, Ian A.
Format: Article
Language:English
Subjects:
Graphene
Hexagonal lattice
Lattice vibration
Photonics
Topology
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Summary:We report the observation of a mode associated with a topological defect in the bulk of a 2D photonic material by introducing a vortex distortion to a hexagonal lattice analogous to graphene. The observed modes lie midgap at zero energy and are closely related to Majorana bound states in superconducting vortices. This is the first experimental demonstration of the Jackiw-Rossi model [R. Jackiw and P. Rossi, Nucl. Phys. B190, 681 (1981)].
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.125.117401