Photonic Topological Mode Bound to a Vortex

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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Veröffentlicht in:Physical review letters 2020-09, Vol.125 (11), p.1-117401, Article 117401
Hauptverfasser: Menssen, Adrian J., Guan, Jun, Felce, David, Booth, Martin J., Walmsley, Ian A.
Format: Artikel
Sprache:eng
Schlagworte:
Graphene
Hexagonal lattice
Lattice vibration
Photonics
Topology
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Zusammenfassung: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