We have implemented and optimized a technique of spin polarization by optical pum** in
a caesium atomic fountain, gaining a nearly fivefold increase in the useful cold atom signal …

Minimization of internal degrees of freedom is an important step in the cooling of atomic
species to degeneracy temperature. Here, we report on the loading of 6× 10 5 thulium atoms …

We use two-laser optical pum** on a continuous atomic fountain in order to prepare cold
cesium atoms in the same quantum ground state. A first laser excites the F= 4 ground state …

We report measurements of near-resonance light scattering from an ultracold sample of R
87 b atoms formed in a magneto-optical trap (MOT). Time-dependent measurements of …

We investigate the ground-state properties and the collective modes of a two-dimensional
two-component Rydberg-dressed Fermi liquid in the dipole-blockade regime. We find …

The Zeeman hyperfine state dependent force in a Stern–Gerlach experiment has been
exploited to separate and quantitatively detect atoms in different Zeeman hyperfine states in …

This thesis reports on photoassociation spectroscopy experiments on ultracold cesium
molecules, achieved through a series of benchmark measurements conducted with the …

In 1874 informeerde de 16-jarige Max Planck, die in dat jaar aan een studie natuurkunde
aan de universiteit van Muenchen begon, bij professor Philipp von Jolly naar de …

We report a correlation between periodic patterns of cold-atom density and field polarization
that gives new insight into a nearly 30 year old question about the role of optical phases in …

Résumé Ce travail de recherche s' inscrit dans la continuité des études, menées depuis 20
ans à l'Observatoire Cantonal de Neuchâtel, pour réaliser un étalon primaire de fréquence …