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A quantum trampoline for ultra-cold atoms

Year: 2010
Type: article
Abstract: We have observed the interferometric suspension of a free-falling Bose-Einstein condensate periodically submitted to multiple-order diffraction by a vertical 1D standing wave. This scheme permits simultaneously the compensation of gravity and coherent splitting/recombination of the matter waves. It results in high-contrast interference in the number of atoms detected at constant height. For long suspension times, multiple-wave interference is revealed through a sharpening of the fringes. We characterize our atom interferometer and use it to measure the acceleration of gravity.
DOI: 10.1209/0295-5075/89/10002
Authors: M. Robert-de-Saint-Vincent, J.-P. Brantut, Ch. J. Bordé, A. Aspect, T. Bourdel, P. Bouyer
Language: English
Open Access status: bronze
Funders: European Space Agency, European Commission, Agence Nationale de la Recherche, Centre National d’Etudes Spatiales, Centre National de la Recherche Scientifique, Institut Francilien de Recherche sur les Atomes Froids
OpenAlex ID: W2013546771
FWCI: 1.667
Cites: 30
Cited by: 27
Related to: 10