Magnetically tunable Feshbach resonances were employed to associate cold diatomic
molecules in a series of experiments involving both atomic Bose and two-spin-component …

In an atomic gas near a Feshbach resonance, the energy of two colliding atoms is close to
the energy of a bound state, ie, a molecular state, in a closed channel that is coupled to the …

Semiconductor microcavities, in which strong coupling of excitons to confined photon modes
leads to the formation of exciton–polariton modes, have increasingly become a focus for the …

We precisely measured the binding energy (ε bind) of a molecular state near the Feshbach
resonance in a 85 Rb Bose-Einstein condensate (BEC). Rapid magnetic-field pulses …

We report on the creation and characterization of heteronuclear K 40 R 87 b Feshbach
molecules in an optical dipole trap. Starting from an ultracold gas mixture of K 40 and R 87 b …

In an atomic Bose-Einstein condensate quenched to the unitary regime, we predict the
sequential formation of a significant fraction of condensed pairs and triples. At short …

We consider in detail the situation of applying a time-dependent external magnetic field to a
87 Rb atomic Bose–Einstein condensate held in a harmonic trap, in order to adiabatically …

Elongated atom traps can confine ultracold gases in the quasi-one-dimensional regime. We
review both the theory of these atom waveguides and their experimental realizations, with …

We study the quench of a degenerate ultracold Bose gas to the unitary regime, where
interactions are as strong as allowed by quantum mechanics. We lay the foundation of a …

Feshbach resonances are commonly described by a single-resonance Feshbach model,
and open-channel resonances are not taken into account explicitly. However, an open …