Experimental work on cold, trapped metastable noble gases is reviewed. The aspects which
distinguish work with these atoms from the large body of work on cold, trapped atoms in …

We review experimental progress on atom lasers out-coupled from Bose–Einstein
condensates, and consider the properties of such beams in the context of precision inertial …

We use tools from nonlinear dynamics for the detailed analysis of cold-atom experiments. A
powerful example is provided by the recent concept of basin entropy, which allows us to …

We study experimentally and theoretically a beam splitter setup for guided atomic matter
waves. The matter wave is a guided atom laser that can be tuned from quasimonomode to a …

We investigate the quantum mechanics of a single particle constrained to move along an
arbitrary smooth reference curve by a confinement that is allowed to vary along the …

We present here the first measurement of the third-order spatial correlation function for
atoms, made possible by cooling a metastable helium cloud to create an ultracold thermal …

The field of atom optics has progressed rapidly over the past 20 years since the realisation
of Bose-Einstein condensation, such that the wave behaviour of atomic gases is now …

Ultracold dilute gases provide ideal settings for measurements of atomic structure. Helium
has an internal structure sufficiently simple to permit highly accurate predictions of its …

Trapped gases of ultracold metastable helium atoms are a unique experimental system. The
trapped cloud's low temperatures, the ability to selectively trap and manipulate individual …

This thesis has been developed during the years in the research group on Nonlinear
Dynamics, Chaos Theory and Complex Systems of the URJC. Its main purpose is the study …