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STE-QUEST - Test of the Universality of Free Fall Using Cold Atom Interferometry

Aguilera, Deborah and Ahlers, H. and Battelier, B. and Bawamia, A. and Bertoldi, A. and Braxmaier, Claus and Schuldt, Thilo (2014) STE-QUEST - Test of the Universality of Free Fall Using Cold Atom Interferometry. Classical and Quantum Gravity, 31 (15). Institute of Physics (IOP) Publishing. doi: 10.1088/0264-9381/31/11/115010. ISSN 0264-9381.

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The theory of general relativity describes macroscopic phenomena driven by the influence of gravity while quantum mechanics brilliantly accounts for microscopic effects. Despite their tremendous individual success, a complete unification of fundamental interactions is missing and remains one of the most challenging and important quests in modern theoretical physics. The STE-QUEST satellite mission, proposed as a medium-size mission within the Cosmic Vision program of the European Space Agency (ESA), aims for testing general relativity with high precision in two experiments by performing a measurement of the gravitational redshift of the Sun and the Moon by comparing terrestrial clocks, and by performing a test of the Universality of Free Fall of matter waves in the gravitational field of Earth comparing the trajectory of two Bose-Einstein condensates of Rb85 and Rb87. The two ultracold atom clouds are monitored very precisely thanks to techniques of atom interferometry. This allows to reach down to an uncertainty in the E\"otv\"os parameter of at least 2x10E-15. In this paper, we report about the results of the phase A mission study of the atom interferometer instrument covering the description of the main payload elements, the atomic source concept, and the systematic error sources.

Item URL in elib:https://elib.dlr.de/87947/
Document Type:Article
Additional Information:Authors STE-QUEST Team
Title:STE-QUEST - Test of the Universality of Free Fall Using Cold Atom Interferometry
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Ahlers, H.Institute of Quantum Optics, Leibniz University Hanover, Welfengarten 1, 30167UNSPECIFIEDUNSPECIFIED
Battelier, B.Laboratoire Photonique, Num�erique et Nanosciences-LP2N Universit�eUNSPECIFIEDUNSPECIFIED
Bawamia, A.Ferdinand-Braun-Institut, Gustav-Kirchho�-Str. 4, 12489 Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Bertoldi, A.Laboratoire Photonique, Num�erique et Nanosciences-LP2N Universit�eUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:Classical and Quantum Gravity
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Publisher:Institute of Physics (IOP) Publishing
Keywords:atom interferometry, equivalence principle, cold atoms, Bose-Einstein condensates, microgravity, quantum gravity, space physics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Systems Engineering Optische Systeme (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Enabling Technologies
Deposited By: Hüls, Simone
Deposited On:13 Feb 2014 11:37
Last Modified:29 Nov 2023 08:22

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