In order to investigate quamtumphysics, we need high power lasers to trap atoms. In our experiments we utilise for example green light to realise an optical lattice in which the atoms can be arranged on a periodic crystal structure.
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Crossover from a BEC to a macrodroplet
Together with our theory colleagues from Hannover, we have investigated the formation of a macrodroplet state in an ultracold bosonic gas of erbium atoms.