Dresden 2011 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 23: Ultracold Atoms: Trapping and Cooling 1 (with Q)
A 23.5: Vortrag
Donnerstag, 17. März 2011, 15:30–15:45, SCH A118
Quantum jumps triggered by atomic motion — Mauricio Torres1, •Marc Bienert1,2, Stefano Zippilli3,4, and Giovanna Morigi2,3 — 1Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico — 2Theoretische Quantenphysik, Universität des Saarlandes, 66041 Saarbrücken, Germany — 3Departament de Física, Universitat Autònoma de Barcelona, E 08193 Bellaterra, Spain — 4Fachbereich Physik and research center OPTIMAS, Technische Universität Kaiserslautern, 67663 Kaiserslautern, Germany
We theoretically study the occurrence of quantum jumps in the resonance fluorescence of a trapped atom. In our approach the atom is laser cooled in a configuration of levels such that the occurrence of a quantum jump is associated to a change of the vibrational center-of-mass motion by one phonon. The statistics of the occurrence of the dark fluorescence period is studied as a function of the physical parameters and the corresponding features in the spectrum of resonance fluorescence are identified. We discuss the information which can be extracted on the atomic motion from the observation of a quantum jump in the considered setup.