Stuttgart 2012 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 40: Poster: Ultra-cold atoms, ions and BEC
A 40.24: Poster
Donnerstag, 15. März 2012, 16:30–19:00, Poster.V
Stability and Collapse of a 52Cr BEC in a 1D optical lattice — •Juliette Billy1, Emanuel Henn1, Stefan Müller1, Holger Kadau1, Thomas Maier1, Matthias Schmitt1, Mattia Jona-Lasinio2, Luis Santos2, Axel Griesmaier1, and Tilman Pfau1 — 1Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, D-70569 Stuttgart, Germany — 2Institut für Theoretische Physik, Leibniz Universität Hannover, D-30167 Hannover, Germany
We have recently measured the stability diagram of a 52Cr dipolar BEC in a 1D optical lattice, showing its strong dependence on the lattice depth [1]. This result opens up the way to investigate the collapse of this system in various regimes. The regime of deep lattice is of particular interest, as for the quasi-2D geometry of the lattice sites, roton features are expected to emerge and be enhanced. We discuss recent results on both lines of investigation, as well as future experiments on dipolar BECs in tailored multi-well potentials.
[1] S. Müller et al., Phys. Rev. A 84, 053601 (2011)