Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 68: Materiewellenoptik

Q 68.3: Vortrag

Freitag, 16. März 2012, 14:30–14:45, V53.01

Interferometry with δ-kick cooled atoms — •André Wenzlawski1, Klaus Sengstock1, and the QUANTUS-TEAM1,2,3,4,5,6,7,8,91Institut für Laser-Physik, Universität Hamburg — 2Institut für Quantenoptik, Universität Hannover — 3Institut für Physik, HU Berlin — 4ZARM, Universität Bremen — 5Institut für angewandte Physik, TU Darmstadt — 6Institut für Quantenphysik, Universität Ulm — 7Midlands Ultracold Atom Research Centre, University of Birmingham, UK — 8FBH, Berlin — 9MPQ, Garching

The observation of a freely expanding Bose-Einstein Condensate in microgravity [1] paved the way for realizing atom interferometers on unprecedented time scales.
To even further extend the available interrogation time for the interferometer the concept of delta kick cooling has been implemented in the experimental apparatus. By using pulsed magnetic fields we can manipulate the momentum distribution of the atoms which allows for the preparation of the atoms in a very narrow momentum distribution. With this method we are also able to use non velocity selected thermal atoms in an atom interferometer. In this talk I will report on recent results obtained with delta-kick cooled atoms.

The QUANTUS Project is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number DLR 50WM1133.
T. van Zoest et al., Science 328, 1540 (2010).

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