Mainz 2017 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 20: Poster Session I
A 20.7: Poster
Dienstag, 7. März 2017, 17:00–19:00, P OG1
Experimental studies of the disordered Bose-Hubbard model in two dimensions — •Jae-yoon Choi1, Antonio Rubio-abadal1, Johannes Zeiher1, Simon Hollerith1, Sebastian Hild1, Immanuel Bloch1,2, and Christian Gross1 — 1Max-Planck-Institut für Quantenoptik, Hans-Kopermann straße 1, 85748 Garching, Germany — 2Fakultät für physik, Ludwig-Maximilians-Universität München, Schellingstraße 4, 80799 München, Germany
The study of disordered systems with ultracold atoms has been extended by the advent of quantum gas microscopy, making it possible to prepare an out-of-equilibrium initial state and measure local quantities rather than bulk properties. In this poster, we summarize our recent experimental work on two-dimensional disordered optical lattice systems. Studying relaxation dynamics of out-of-equilibrium initial states, we observe a many-body localized phase and investigate the phase transition in the 2D system. Moreover, motivated by recent proposals, we probed the Bose glass phase locally by measuring an Edward-Anderson parameter analogue. Our measurements provide a chemical resolved characterization of the disordered Bose-Hubbard model in the low energy limit.