Dresden 2011 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 25: Matter Wave Optics
Q 25.9: Vortrag
Mittwoch, 16. März 2011, 12:30–12:45, BAR Schön
Matter wave optics with Bose-Einstein condensates in microgravity — •Hauke Müntinga1, Claus Lämmerzahl1, and the QUANTUS Team2,3,4,5,6,7,8,9,10 — 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 — 7Midlands Ultracold Atom Research Centre, University of Birmingham, UK — 8FBH, Berlin — 9MPQ, Garching — 10Laboratoire Kastler Brossel, ENS, Paris
In 2007 the first Bose-Einstein condensate in microgravity was realized by the QUANTUS collaboration in the ZARM drop tower in Bremen. In over 200 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 out apparatus. In our talk we will describe the current setup and give an abstract of recent measurements addressing e.g. the phase evolution of the condensate on macroscopic time scales.
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.
T. van Zoest et al., Science 328, 1540 (2010).