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Preparing and probing Chern bands with cold atoms

par Goldman, Nathan ;Cooper, Nigel N.R.;Dalibard, Jean
Référence Universal Themes of Bose-Einstein Condensation, Cambridge University Press, page (274-298)
Publication Publié, 2017-04

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Résumé :

The present chapter discusses methods by which topological Bloch bands can be prepared in cold-atom setups. Focusing on the case of Chern bands for two-dimensional systems, we describe how topological properties can be triggered by driving atomic gases, either by dressing internal levels with light or through time-periodic modulations. We illustrate these methods with concrete examples, and we discuss recent experiments where geometrical and topological band properties have been identified.