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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 ISBN ISSN 0264-9381 ISSN 0264-9381

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Abstract

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
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Aguilera, Deborahdeborah.aguilera (at) dlr.deUNSPECIFIED
Ahlers, H.Institute of Quantum Optics, Leibniz University Hanover, Welfengarten 1, 30167UNSPECIFIED
Battelier, B.Laboratoire Photonique, Num�erique et Nanosciences-LP2N Universit�eUNSPECIFIED
Bawamia, A.Ferdinand-Braun-Institut, Gustav-Kirchho�-Str. 4, 12489 Berlin, GermanyUNSPECIFIED
Bertoldi, A.Laboratoire Photonique, Num�erique et Nanosciences-LP2N Universit�eUNSPECIFIED
Braxmaier, Clausclaus.braxmaier (at) dlr.deUNSPECIFIED
Schuldt, ThiloDLR-RY, BremenUNSPECIFIED
Date:2014
Journal or Publication Title:Classical and Quantum Gravity
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:31
DOI :10.1088/0264-9381/31/11/115010
Publisher:Institute of Physics (IOP) Publishing
ISSN:0264-9381
ISBN:ISSN 0264-9381
Status:Published
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 Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Systems Engineering Optische Systeme
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:31 Jul 2019 19:45

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