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A new setup for Ultracold mixtures of lithium and cesium

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Ultracold mixtures hold the promise of understanding new phases of matter and collisions at very low energies. We are setting up an experiment for bose-fermi mixtures of lithium and caesium, which are especially well suited to study impurities, transport, solitons or mixtures in optical lattices. These species are appealing because they offer favourable interactions properties and can be manipulated independently of each other due to their different resonance frequencies and are especially interesting for the creation of polar moleclues. I will present the current status of our experiment, detail the cooling schemes for the two atomic species and include the development and optimal loading of our optical dipole trap. I will furthermore discuss a theory project on how fermionic impurities in a bosonic background can be used to determine ultralow temperatures.

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