Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2006-03-22
Physics
Condensed Matter
Other Condensed Matter
Scientific paper
10.1080/09500340600777730
We experimentally investigate the adiabatic loading of a Bose-Einstein condensate into an optical lattice potential. The generation of excitations during the ramp is detected by a corresponding decrease in the visibility of the interference pattern observed after free expansion of the cloud. We focus on the superfluid regime, where we show that the limiting time scale is related to the redistribution of atoms across the lattice by single-particle tunneling.
Bloch Immanuel
Foelling Simon
Gerbier Fabrice
Gericke Tatjana
Mandel Olaf
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