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Habilitation à diriger des recherches

Habilitation à diriger des recherches

Abstract : This thesis summarizes my research activities, from the beginning of my PhD thesis until now. This manuscript is divided in two parts. The first one is related to my PhD-thesis work, and to part of the work I have done during my post-doctoral stay at the University of Hamburg. Results on the role of low-frequences coherences in laser spectroscopy are presented in this part.
The topics I have addressed are coherent population trapping, bright resonances, the preparation and manipulation of quantum states by using time-dependent dark states, and the study of the effect of low-frequency coherences in the transport spectroscopy through tunnel-coupled quantum dots.

The second part of this thesis summarizes my work on cold atoms in optical lattices. The main topic of this research is the atomic dynamics in optical lattices. The diffusive motion of the atoms, the relaxation of their kinetic energy and their propagation modes have been studied. The progress in the understanding of the atomic dynamics in optical lattices has then been used to explain the origin of the Rayleigh resonance in the absorption spectrum of the atoms trapped in the lattice. Moreover, we used optical lattices as a case-study for some phenomena in non-linear physics. In particular, we studied the phenomenon of stochastic resonance in a driven optical lattice, and we have demonstrated directed motion for atoms in a symmetric potential.
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Habilitation à diriger des recherches
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Contributor : Ferruccio Renzoni <>
Submitted on : Thursday, September 4, 2003 - 2:24:15 PM
Last modification on : Monday, December 14, 2020 - 9:49:07 AM
Long-term archiving on: : Wednesday, September 12, 2012 - 10:20:20 AM

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  • HAL Id : tel-00003299, version 1

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Ferruccio Renzoni. Habilitation à diriger des recherches. Physique Atomique [physics.atom-ph]. Université Pierre et Marie Curie - Paris VI, 2003. ⟨tel-00003299⟩

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