VISITING SPEAKER: Interferometry with Bose-Einstein Condensates in Microgravity – Science and Technology
|Interferometry with Bose-Einstein Condensates in Microgravity – Science and Technology
Inertial sensors based on interferometry with ultra cold matter waves are a valuable tool for many experiments. The spectrum of applications covers a broad area from metrology through gravimetry and geodesy up to addressing fundamental questions in physics, such as testing the validity of the Einstein equivalence principle (EEP) in the quantum domain. QUANTUS is a collaboration aiming at the implementation of such sensors on a space platform in order to perform precision measurements. The performance of such a device is mainly limited by the unperturbed evolution time of the wave packets in the interferometer. Here, microgravity conditions offer extremely long interrogation times and ultra low temperatures of the quantum object, which substantially increase sensitivity to levels not obtainable on Earth.
The successful observation of Bose-Einstein condensation in microgravity at the drop tower in Bremen (ZARM) was an important result towards realizing coherent sources for atom interferometers under extreme conditions. This talk will present the progress that has been made since then in implementing various interferometry schemes and analyzing the long-time coherence properties of the macroscopically separated wave packets. It will furthermore outline the ongoing activities towards dual species atom interferometry with Rubidium and Potassium (in order to perform quantum tests of the EEP), which will be performed in advanced drop-tower experiments as well as in the context of sounding rocket missions commencing as soon as fall 2013. The technology developments necessary to operate precision experiments in such challenging environments will also be discussed in detail.
Professor Peters is visiting UWA from Humboldt-University Berlin & Ferdinand-Braun-Institute.
Prof. Achim Peters
Physics, Seminar Room 2.15
: 6488 2738
Tue, 14 Aug 2012 15:45
Tue, 14 Aug 2012 16:45
Adia Yu <[email protected]>
Tue, 14 Aug 2012 08:14
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