Direct measurement of the spatial correlation function of ultracold atoms

verfasst von

B. Saubaméa, T. W. Hijmans, S. Kulin, E. Rasel, E. Peik, M. Leduc, C. Cohen-Tannoudji

Abstract

We demonstrate a new method to directly measure, from the overlap of two atomic wave packets, the spatial correlation function of metastable helium atoms cooled by velocity selective coherent population trapping. This approach allows us to determine precisely the effective temperature of the atoms and to make quantitative comparison with theory. Temperatures as low as 1/800 of the recoil temperature are found. Moreover, we extend this method to realize a temporal interferometer with de Broglie matter waves in the subrecoil regime.

Organisationseinheit(en)

Institut für Quantenoptik

Externe Organisation(en)

École normale supérieure (Paris)

Typ

Artikel

Journal

Physical review letters

Band

79

Seiten

3146-3149

Anzahl der Seiten

4

ISSN

0031-9007

Publikationsdatum

1997

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie

Elektronische Version(en)

https://doi.org/10.1103/PhysRevLett.79.3146 (Zugang: Unbekannt)