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Heidelberg 2015 – wissenschaftliches Programm

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SYPS: Promovierendensymposium: Controlled Diatomic Molecules in the Ultracold Regime

SYPS 1: Controlled Diatomic Molecules in the Ultracold Regime

SYPS 1.3: Hauptvortrag

Dienstag, 24. März 2015, 18:15–18:45, K/HS1

Ground-state molecules near quantum degeneracy: the nuts and bolts — •Hanns-Christoph Nägerl — University of Innsbruck, Austria

Preparing atomic samples in the regime of quantum degeneracy has become routine in many laboratories worldwide. Entering the same regime for samples of ground-state molecules is a major challenge and has only recently become possible for dimer molecules composed of alkali atoms. I will give an overview over the experimental techniques that are used prepare samples of alkali dimer molecules (such as homonuclear Cs2, fermionic KRb, and bosonic RbCs) at ultralow temperatures in the nanokelvin regime in their rovibrational ground state with hyperfine state control. Pulling out all the stops of AMO physics it should be possible that one prepares ground-states samples of dipolar molecules with unity occupation in ground-state band of an optical lattice. Such samples will be a good start for the study of many-body quantum physics, e.g. extended Hubbard models, spin models and in general non-equilibrium physics beyond mere contact interaction.

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