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arXiv · 1807.08096

Topological edge states and Aharanov-Bohm caging with ultracold atoms carrying orbital angular momentum

G. Pelegrí·A. M. Marques·R. G. Dias·A. J. Daley·J. Mompart·V. Ahufinger
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Abstract

We show that bosonic atoms loaded into orbital angular momentum $l=1$ states of a lattice in a diamond-chain geometry provides a flexible and simple platform for exploring a range of topological effects. This system exhibits robust edge states, and the relative phases arising naturally in the tunnelling amplitudes lead to the appearance of Aharanov-Bohm caging in the lattice. We discuss how these properties can be realised and observed in ongoing experiments.

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G. Pelegrí, A. M. Marques, R. G. Dias, A. J. Daley, J. Mompart, V. Ahufinger. 2018-07-21. Topological edge states and Aharanov-Bohm caging with ultracold atoms carrying orbital angular momentum. https://doi.org/10.1103/physreva.99.023613

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