Journal
QUANTUM SCIENCE AND TECHNOLOGY
Volume 3, Issue 4, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2058-9565/aaca47
Keywords
topological insulator; edge states; Rydberg atoms; dipolar interaction
Funding
- European Research Council (ERC) under the European Unions Horizon 2020 research and innovation programme [681208]
- Region Ile-de-France
- Fondation d'entreprise iXcore pour la Recherche
- Labex PALM (Xylos project)
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We propose a simple setup of Rydberg atoms in a honeycomb lattice which gives rise to topologically protected edge states. The proposal is based on the combination of dipolar exchange interaction, which couples the internal angular momentum and the orbital degree of freedom of a Rydberg excitation, and a static magnetic field breaking time reversal symmetry. We demonstrate that for realistic experimental parameters, signatures of topologically protected edge states are present in small systems with as few as 10 atoms. Our analysis paves the way for the experimental realization of Rydberg systems characterized by a topological invariant, providing a promising setup for future application in quantum information.
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