Heidelberg 2015 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 62: Poster: Quantum Optics and Photonics III
Q 62.41: Poster
Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer
QUANTUS 2 - a matter wave interferometer in extended free fall — •Alexander Grote1, Klaus Sengstock1, and the QUANTUS Team1,2,3,4,5,6,7,8,9 — 1Institut für Laserphysik, Universität Hamburg — 2Institut für Quantenoptik, Universität Hannover — 3Institut für Physik, Humbolt Universität zu Berlin — 4ZARM, Universität Bremen — 5Institut für Physik, Johannes Gutenberg-Universität — 6Ferdinand-Braun-Institut, Berlin — 7Institut für Quantenphysik, Universität Ulm — 8Institut für angewandte Physik, TU Darmstadt — 9MPQ, Garching
Inertial sensors based on cold atoms are an outstanding tool for fundamental physics research under microgravity such as testing the Einstein equivalence principle. Here we present the first results of our apparatus after drops and catapult shots in the Bremen drop tower. During a microgravity time of 9s the apparatus is capable of subsequently producing and performing experiments with up to four 87Rb BECs. During the first drop and catapult campaigns we found that the position and dynamics of the atoms closely follow the predictions made by an extensive simulation of our magnetic chip. By implementing magnetic lensing we will be able to demonstrate atom interferometry with unprecedented interrogation times. For future campaigns the setup will be modified to produce mixtures of both Rubidium and Potassium for dual species atom interferometry.
The QUANTUS project is supported by the German Space Agency DLR with funds provided by the Federal Ministry of Economic Affairs and Energy (BMWi) under grant number DLR 50WM1131-1137.