Ultracold atoms for matter-wave interferometry in microgravity
- Paper number
IAC-18,A2,1,11,x44406
- Author
Dr. Tammo Sternke, Germany, University of Bremen - ZARM
- Coauthor
Mr. Christian Deppner, Germany, Leibniz Universiät Hannover
- Coauthor
Mr. Peter Stromberger, Germany, Johannes Gutenberg University of Mainz
- Coauthor
Mrs. Merle Cornelius, Germany, University of Bremen - ZARM
- Coauthor
Dr. Waldemar Herr, Germany, Leibniz Universiät Hannover
- Coauthor
Dr. Sven Herrmann, Germany, ZARM University of Bremen
- Coauthor
Prof. Claus Lämmerzahl, Germany, ZARM Fab GmbH
- Year
2018
- Abstract
Light-pulse atom interferometry has various applications ranging from inertial sensing through gravimetry or gradiometry to fundamental tests of physics like the equivalence principle. Any precision measurement using atom interferometry has demanding requirements, for example, regarding the velocity spread of the atomic ensemble. We combined a collective excitation of an $^{87}$Rb Bose-Einstein condensate with a magnetic lens in order to achieve 3D collimation equivalent to a kinetic temperature of 70\,pK. The ultrasmall expansion rates are critical in order to exploit the full potential of the extended free fall and pave the way to space-based precision tests of the equivalence principle and beyond.- Abstract document
- Manuscript document
IAC-18,A2,1,11,x44406.pdf (🔒 authorized access only).
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