Puce Atomique

Activité scientifique

We study the physics of one-dimensional Bose gases using an atom chip set-up. Rubidium 87 atoms are held in a magnetic surface trap allowing strong transverse confinement. The variety of phases in this reduced dimension is very rich, from the weakly interacting quasi-condensates to the fermionised regimes and strongly correlated phases, and the abundant theoretical tools allow quantitative comparison between theory and experiment. Moreoever the uniform 1D Bose gas has an integrable hamiltonian making our experiment an ideal test bench for studying out of equilibrium dynamics of isolated quantum many-body integrable systems.

Figure: Atom-chip used for the manipulation of cold Rubidium atoms. Photo: Isabelle Bouchoule, 2019.