Guillaume Roux

Observation of a disordered bosonic insulator from weak to strong interactions.

We employ ultracold atoms with controllable disorder and interaction to study the paradigmatic problem of disordered bosons in the full disorder-interaction plane. Combining measurements of coherence, transport and excitation spectra, we get evidence of an insulating regime extending from weak to strong interaction and surrounding a superfluidlike regime, in general agreement with the theory. For strong interaction, we reveal the presence of a strongly correlated Bose glass coexisting with a Mott insulator.

Molecular superfluid phase in systems of one-dimensional multicomponent fermionic cold atoms

We study a simple model of

Slow quench dynamics of Mott-insulating regions in a trapped Bose gas

N

Confinement versus deconfinement of Cooper Pairs in One-Dimensional Spin-3/2 Fermionic Cold Atoms

-component fermions with contact interactions which describes fermionic atoms with

Precursor of the Laughlin state of hard-core bosons on a two-leg ladder

N=2F+1

Zeeman effect in superconducting two-leg ladders: irrational magnetization plateaus and exceeding the Pauli limit.

hyperfine states loaded into a one-dimensional optical lattice. We show by means of analytical and numerical approaches that, for attractive interaction, a quasi-long-range molecular superfluid phase emerges at low density. In such a phase, the pairing instability is strongly suppressed and the leading instability is formed from bound states made of

Melting of a frustration-induced dimer crystal and incommensurability in the J_1-J_2 two-leg ladder

N

Floquet engineering of Haldane Chern insulators and chiral bosonic phase transitions

fermions. At small density, the molecular superfluid phase is generic and exists for a wide range of attractive contact interactions without an

Diamagnetism of doped two-leg ladders and probing the nature of their commensurate phases

\mathrm{SU}(N)

Localization of Spinons in Random Majumdar-Ghosh Chains

symmetry between the hyperfine states.