Hannover 2013 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 29: Poster: Ultra-cold atoms, ions and BEC (with Q)

A 29.26: Poster

Mittwoch, 20. März 2013, 16:00–18:30, Empore Lichthof

Progress at the Munich ultracold polar molecules project — •Nikolaus Buchheim, Zhenkai Lu, Diana Amaro, Tobias Schneider, Immanuel Bloch, and Christoph Gohle — Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching

Ultra cold quantum gases with large dipolar interaction or large polarizability that are recently becoming available promise exciting new possibilities. Self assembled lattices of polarized particles supporting phonon modes will provide opportunities to simulate an even broader range of solid state physics phenomena [1]. New classes of many body phases (like super solids and stripe phases) are on the horizon and ferroelectric phases of highly polarizable systems are expected.

Among other systems like Rydberg atoms or Atoms with exceptionally large magnetic dipole moments, simple polar molecules are a viable alternative due to their good balance between dipole length and scattering length as well as their potential long levity. We present the latest news on our experiment to create ultracold NaK molecules. In this system the instability due to inelastic two body collisions known from pioneering experiments [2] does not exist and chances are good to reach far into the interesting parameter space.

[1] Pupillo, G., Micheli, A., Büchler, H. P., & Zoller, P. (2008). Condensed Matter Physics with Cold Polar Molecules. arxiv:0805.1896.

[2] Ni, K.-K., Ospelkaus, S., et al. A high phase-space-density gas of polar molecules. Science, 322, 231-5 (2008).