Matthew Reichl, Erich Mueller
Published 2014-04-11, updated 2014-06-30Version 2
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.
Comments: 6 pages, 5 figures, revtex4; minor corrections, references added
Journal: Phys. Rev. A 89, 063628 (2014)
Use of quantum quenches to probe the equilibrium current patterns of ultracold atoms in an optical lattice
Resonant control of cold-atom transport through two optical lattices with a constant relative speed
Role of interactions in time-of-flight expansion of atomic clouds from optical lattices
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