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Friday, December 11th, 2015 at 11:00
Room: D102 - Institut Galilée
Manuel Donaire
Laboratoire Kastler Brossel
Université Pierre et Marie Curie
4, place Jussieu
75005 PARIS - France

In this talk I will address several aspects of the Casimir-Polder (CP) and van der Waals (vdW) interactions which need a time-dependent treatment. To this aim, a diagrammatic approach will be developed.

In the first part of this talk I will show that, for an atom driven through Rabi oscillations under the action of Raman lasers, the CP interaction of the atom with a material surface may give rise to a renormalisation of the Rabi frequency [1]. Likewise, CP-induced Rabi oscillations may generate between two Zeeman sub-levels of a free atom in the vicinity of a reflecting surface [2].

Next, I will outline the computation of the vdW interaction between two non-identical atoms, one of which is prepared in an excited state. It is found that this interaction presents oscillations, both in time and in space [3]. Finally, I will discuss recent results on the quantum friction that an excited atom experiences as it moves at constant velocity parallel to a dilute atomic surface [4].

The coherent effect of atom-surface interactions on driven atoms and the dynamical effects of atom-atom interactions on excited atoms

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