Hannover 2020 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 22: Posters: Quantum Optics and Photonics II
Q 22.50: Poster
Dienstag, 10. März 2020, 16:30–18:30, Empore Lichthof
Few ultracold fermions in a two-dimensional trap — •Ram-Janik Petzold, Jan Hendrik Becher, Ralf Klemt, Philipp Preiss, and Selim Jochim — Physikalisches Institut der Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
A novel experimental setup is presented, which was designed to explore the emergence of many-body quantum effects of ultracold fermion gases in two dimensions starting from the few particle level. It mainly consists of a quasi-two-dimensional optical dipole trap for a system of countable few fermionic 6Li atoms. The trap is created by two red-detuned laser beams interfering in their crossing region and providing a strong vertical confinement by a standing wave pattern. An additional single focused beam trap perpendicular to this light-sheet structure allows the independent control over the radial restriction of the harmonic trapping potential. Furthermore, the setup enables accurate control over the absolute number of particles in the trap as well as the inter-particle interaction strength and spin-resolved single-atom detection, which has already been demonstrated in a quasi-one-dimensional configuration.
It is expected that this experimental simulator will allow to study the onset of quantum many-body physics in two dimensions by mapping out correlations in position and momentum space.