Erlangen 2018 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 33: Poster Session II
A 33.19: Poster
Mittwoch, 7. März 2018, 16:15–18:15, Redoutensaal
Radiation pressure on a two-level atom: an exact analytical approach — •Lionel Podlecki1, Rohan Glover1,2, John Martin1, and Thierry Bastin1 — 1Institut de Physique Nucléaire, Atomique et de Spectroscopie, CESAM, University of Liege, Bât. B15, Sart Tilman, Liège 4000, Belgium — 2Centre for Quantum Dynamics, Griffith University, Nathan, QLD 4111, Australia
The mechanical action of light on atoms is nowadays a tool used ubiquitously in cold atom physics. In the semiclassical regime where the atomic motion is treated classically, the computation of the mean force acting on a two-level atom requires in the most general case numerical approaches. Here we show [1] that this problem can be tackled in a pure analytical way. We provide an analytical yet simple expression of the mean force that holds in the most general case where the atom is simultaneously exposed to an arbitrary number of lasers with arbitrary intensities, wave vectors, and phases. This yields a novel tool for engineering the mechanical action of light on single atoms.
[1] L. Podlecki, R. Glover, J. Martin, and T. Bastin, Radiation pressure on a two-level atom: an exact analytical approach, J. Opt. Soc. Am. B (in press); arXiv:1702.05410, (2017).