RF spectroscopy in a resonant RF-dressed trap

Raghavan Kollengode Easwaran (1) , Laurent Longchambon (1) , Paul-Eric Pottie (1) , Vincent Lorent (1) , Hélène Perrin (1) , Barry M. Garraway (2)

1 Condensat de Bose-Einstein
2 DPA - Department of Physics and Astronomy [Brighton]

We study the spectroscopy of atoms dressed by a resonant radiofrequency (RF) field inside an inhomogeneous magnetic field and confined in the resulting adiabatic potential. The spectroscopic probe is a second, weak, RF field. The observed line shape is related to the temperature of the trapped cloud. We demonstrate evaporative cooling of the RF-dressed atoms by sweeping the frequency of the second RF field around the Rabi frequency of the dressing field.

Domaines: Physique Atomique [physics.atom-ph]

Raghavan Kollengode Easwaran, Laurent Longchambon, Paul-Eric Pottie, Vincent Lorent, Hélène Perrin, et al.. RF spectroscopy in a resonant RF-dressed trap. Journal of Physics B: Atomic, Molecular and Optical Physics, 2010, 43 (6), pp.065302. ⟨10.1088/0953-4075/43/6/065302⟩. ⟨hal-00456214⟩