Journal
SCIENCE
Volume 349, Issue 6255, Pages 1510-1513Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaa8736
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Funding
- European Union (EU) SIQS
- Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR) PRIN AQUASIM
- European Research Council (ERC) DISQUA
- ERC UQUAM
- SFB FoQuS of the Austrian Science Fund
- EU SIQS
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Chiral edge states are a hallmark of quantum Hall physics. In electronic systems, they appear as a macroscopic consequence of the cyclotron orbits induced by a magnetic field, which are naturally truncated at the physical boundary of the sample. Here we report on the experimental realization of chiral edge states in a ribbon geometry with an ultracold gas of neutral fermions subjected to an artificial gauge field. By imaging individual sites along a synthetic dimension, encoded in the nuclear spin of the atoms, we detect the existence of the edge states and observe the edge-cyclotron orbits induced during quench dynamics. The realization of fermionic chiral edge states opens the door for edge state interferometry and the study of non-Abelian anyons in atomic systems.
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