J. Phys. IV France
Volume 119, November 2004
Page(s) 187 - 188

J. Phys. IV France 119 (2004) 187-188

DOI: 10.1051/jp4:2004119050

Investigation of the nonzero temperature effects in cavity quantum electrodynamics

I. Hamdi, M.-P. Gorza, P. Segundo, G. Dutier, P. Valente, J.R.R. Leite, M. Fichet, D. Bloch and M. Ducloy

Laboratoire de Physique des Lasers, UMR 7538 du CNRS, Université Paris 13, 99 Av. JB Clément, 93430 Villetaneuse, France

The T $\,{=}\,$0 temperature limit can be applied to Cavity Quantum Electrodynamics problems only when the relevant wavelengths are much larger than the typical length associated to the thermal energy. We discuss here the problem of the virtual coupling between an atom absorption and the thermal emission of a surface. Experiments are in progress on the Cs(8P) level, that is coupled to the 7D level by an absorption channel in the 30-40 $\mu$m region.

© EDP Sciences 2004