Ultracold atom interferometry in space

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Lachmann, M.D.; Ahlers, H.; Becker, D.; Dinkelaker, A.N.; Grosse, J. et al.: Ultracold atom interferometry in space. In: Nature Communications 12 (2021), 1317. DOI: https://doi.org/10.1038/s41467-021-21628-z

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Sum total of downloads: 104




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Abstract: 
Bose-Einstein condensates (BECs) in free fall constitute a promising source for space-borne interferometry. Indeed, BECs enjoy a slowly expanding wave function, display a large spatial coherence and can be engineered and probed by optical techniques. Here we explore matter-wave fringes of multiple spinor components of a BEC released in free fall employing light-pulses to drive Bragg processes and induce phase imprinting on a sounding rocket. The prevailing microgravity played a crucial role in the observation of these interferences which not only reveal the spatial coherence of the condensates but also allow us to measure differential forces. Our work marks the beginning of matter-wave interferometry in space with future applications in fundamental physics, navigation and earth observation.
License of this version: CC BY 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2021
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 51 49.04%
2 image of flag of United States United States 20 19.23%
3 image of flag of China China 18 17.31%
4 image of flag of Korea, Republic of Korea, Republic of 2 1.92%
5 image of flag of Austria Austria 2 1.92%
6 image of flag of Israel Israel 1 0.96%
7 image of flag of Indonesia Indonesia 1 0.96%
8 image of flag of United Kingdom United Kingdom 1 0.96%
9 image of flag of France France 1 0.96%
10 image of flag of Canada Canada 1 0.96%
    other countries 6 5.77%

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