Abstract
The weak Equivalence Principle (EP) represents a corner stone in the General Theory of relativity [1]. The validity of this postulate was and is currently tested in different groups with different systems. Among this multitude atom interferometry is considered to be one of the most powerful tools in performing high-precision measurements [2]. Using two atom species in free fall with different masses allows comparing two independent measurements of g. This is made possible by creating simultaneously in a single experiment a mixture of two atomic species at a temperature close to the absolute zero. This regime is suitable to the observation of matter waves at long time scales needed for quantum tests. In this letter an overview of the last developments of these quantum sensors is done. The up-to-date progress and future prospects in our group of these ambitious and technically challenging projects will be presented as well.
Original language | English |
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Title of host publication | 60th International Astronautical Congress 2009, IAC 2009 |
Pages | 488-492 |
Number of pages | 5 |
Publication status | Published - 2009 |
Event | 60th International Astronautical Congress 2009, IAC 2009 - Daejeon, Korea, Republic of Duration: 12 Oct 2009 → 16 Oct 2009 |
Publication series
Name | 60th International Astronautical Congress 2009, IAC 2009 |
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Volume | 1 |
Conference
Conference | 60th International Astronautical Congress 2009, IAC 2009 |
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Country/Territory | Korea, Republic of |
City | Daejeon |
Period | 12/10/09 → 16/10/09 |
Bibliographical note
Funding Information: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 no. DLR 50 WM 0346 .
ASJC Scopus subject areas
- Space and Planetary Science
- Astronomy and Astrophysics