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Floquet edge states with ultracold atoms

Cornell Affiliated Author(s)

Author

M.D. Reichl
E.J. Mueller

Abstract

We describe an experimental setup for imaging topologically protected Floquet edge states using ultracold bosons in an optical lattice. Our setup involves a deep two-dimensional optical lattice with a time-dependent superlattice that modulates the hopping between neighboring sites. The finite waist of the superlattice beam yields regions with different topological numbers. One can observe chiral edge states by imaging the real-space density of a bosonic packet launched from the boundary between two topologically distinct regions. © 2014 American Physical Society.

Date Published

Journal

Physical Review A - Atomic, Molecular, and Optical Physics

Volume

89

Issue

6

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84903628924&doi=10.1103%2fPhysRevA.89.063628&partnerID=40&md5=4333abac8f4265357886b8a14557e555

DOI

10.1103/PhysRevA.89.063628

Funding Source

DGE-1144153
PHY-1068165

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