Applied Physics B

, Volume 54, Issue 5, pp 407–419

Trapping atoms in a gravitational cavity

  • H. Wallis
  • J. Dalibard
  • C. Cohen-Tannoudji
Atom Optics

DOI: 10.1007/BF00325387

Cite this article as:
Wallis, H., Dalibard, J. & Cohen-Tannoudji, C. Appl. Phys. B (1992) 54: 407. doi:10.1007/BF00325387

Abstract

This paper is devoted to the study of a new atomic cavity consisting of a single horizontal concave mirror placed in the earth gravitational field. Gravity, by bending the atomic trajectories, plays the role of a second mirror closing the cavity. We first discuss the stability criterion for this cavity, assuming that the mirror has a parabolic shape. We then derive the quantum mechanical modes of such a configuration, with particular emphasis on the paraxial (i.e., close to vertical) motion. Finally, we discuss the possibility of populating those modes from an initial cold atomic cloud dropped above the mirror.

PACS

32.80.Pj 

Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • H. Wallis
    • 1
  • J. Dalibard
    • 1
  • C. Cohen-Tannoudji
    • 1
  1. 1.Laboratoire de Spectroscopie Hertzienne de l'E.N.S. and Collège de FranceParis Cedex 05France
  2. 2.Institut für Angewandte Physik der Universität BonnBonnGermany