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 57.13: Poster

Donnerstag, 17. März 2011, 16:30–19:30, P1

Low-dimensional physics on atom chips — •Anton Piccardo-Selg, Gal Aviv, Simon Goodall, Lucia Hackermüller, Thomas Fernholz, and Peter Krüger — School of Physics and Astronomy, University of Nottingham, NG7 2RD, United Kingdom

Atom chips allow for almost arbitrary trapping geometries for atomic ensembles by means of magnetic, electric, optical, microwave and radio-frequency potentials. Our research aims at the creation of multiply connected topologies, like rings, tori, and cylinders. These traps are used to investigate the low temperature behaviour of ultracold quantum gases when the dimensionality of the trapping geometry changes.

Our current atom chip generation will produce cylinder-symmetric traps by using a combination of dc and radio-frequency fields. Further to the investigation of low-dimensional systems the chip can be used to dynamically split an elongated cloud of ultracold atoms. This ``unzipping'' of the cloud is intended to be used as a quantum simulator for the dynamical Casimir effect. The current progress of the experimental setup will be presented.