Ultracold atoms confined in rf-induced two-dimensional trapping potentialsY. Colombe, E. Knyazchyan, O. Morizot, B. Mercier, V. Lorent and H. Perrin
Laboratoire de physique des lasers, CNRS-Université Paris 13 99 avenue Jean-Baptiste Clément, F-93430 Villetaneuse, France
(Received 1 March 2004; accepted 7 June 2004)
We present the experimental implementation of a new trap for cold atoms proposed by O. Zobay and B. M. Garraway (Phys. Rev. Lett. 86 (2001) 1195). It relies on adiabatic potentials for atoms dressed by a rf field in an inhomogeneous magnetic field. This trap is well suited to confine atoms tightly along one direction to produce a two-dimensional atomic gas. We transferred ultracold atoms into this trap, starting either from thermal samples or Bose-Einstein condensates. In the latter case, technical noise during the loading stage caused heating and prevented us from observing 2D BECs.
42.50.Vk - Mechanical effects of light on atoms, molecules, electrons, and ions.
03.75.-b - Matter waves.
32.80.Pj - Optical cooling of atoms; trapping.
© EDP Sciences 2004