Stuttgart 2012 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 51: Materiewellenoptik
A 51.1: Vortrag
Freitag, 16. März 2012, 14:00–14:15, V53.01
QUANTUS I - Matter wave interferometry in the bremen drop tower — •Hauke Müntinga1, Sven Herrmann1, Claus Lämmerzahl1, and the QUANTUS TEAM1,2,3,4,5,6,7,8,9 — 1ZARM - Universität Bremen — 2Institut für Quantenoptik, LU Hannover — 3Institut für Physik, HU Berlin — 4Institut für Laser-Physik, Universität Hamburg — 5Institut für Quantenphysik, Universität Ulm — 6Institut für angewandte Physik, TU Darmstadt — 7MUARC, University of Birmingham — 8FBH, Berlin — 9DLR Institut für Raumfahrtsysteme, Bremen
In 2007 the first Bose-Einstein condensate in microgravity was realized by the QUANTUS collaboration in the ZARM drop tower in Bremen.
In nearly 350 drops from a height of 110 m, our setup has proven the feasibility of operating delicate quantum optical experiments in demanding environments and allowed us to study the physics of ultra-cold quantum gases in previously inaccessible parameter regimes.
After examining the free evolution of the condensate for up to 1 s [1], we have now integrated a matter wave interferometer based on Bragg diffraction into our apparatus. In our talk we will describe the current setup and give an overview of recent experimental campaigns addressing the extension of the interrogation time of a Mach-Zehnder type interferometer to the realm of seconds.
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 50 WM 1135.