Dresden 2011 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 57: Poster 3: Quantengase, Ultrakalte Atome, Ultrakalte Moleküle, Materiewellen Optik, Präzisionsmessungen, Metrologie
Q 57.44: Poster
Donnerstag, 17. März 2011, 16:30–19:30, P1
Experiments with ultracold atoms in optical superlattices — •Monika Aidelsburger1, Marcos Atala1,2, Yu-Ao Chen1,2, Sylvain Nascimbène1,2, Stefan Trotzky1, and Immanuel Bloch1,2 — 1Fakultät für Physik Ludwig-Maximilians-Universität, 80799 München, Deutschland — 2Max-Planck-Institut für Quantenoptik, 85748 Garching, Deutschland
Optical lattices became an essential tool for simulating condensed matter physics with ultracold atoms. By adding a standing wave with twice the periodicity to one of the three axis of a simple cubic lattice we can create a three-dimensional array of isolated double wells. We would like to present our recent experiments done in this configuration and discuss the extension of the current system to a two-dimensional superlattice. This will enable us to investigate minimum forms of topologically ordered quantum states in isolated plaquettes, such as Resonating Valence Bond states and to study ring exchange interactions, the basic ingredient of lattice gauge theories.