Feshbach resonances are the essential tool to control the interaction between atoms in
ultracold quantum gases. They have found numerous experimental applications, opening up …

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

Abstract Systems of three interacting particles are notorious for their complex physical
behaviour. A landmark theoretical result in few-body quantum physics is Efimov's prediction …

We review recent theoretical advances in cold atom physics concentrating on strongly
correlated cold atoms in optical lattices. We discuss recently developed quantum optical …

It was recently predicted [Phys. Rev. Lett. 81, 938 (1998) PRLTAO 0031-9007
10.1103/PhysRevLett. 81.938] that atom-atom scattering under transverse harmonic …

We derive exact general relations between various observables for N spin-1/2 fermions with
zero-range or short-range interactions, in continuous space or on a lattice, in two or three …

We report on the first direct observation of fast spin-exchange coherent oscillations between
different long-lived electronic orbitals of ultracold Yb 173 fermions. We measure, in a model …

Few-body physics has played a prominent role in atomic, molecular and nuclear physics
since the early days of quantum mechanics. It is now possible—thanks to tremendous …

A simple quantum-defect model gives analytic expressions for the complex scattering length
and threshold collision rates of ultracold molecules. If the probability of reaction in the short …

We create molecules from fermionic atoms in a three-dimensional optical lattice using a
Feshbach resonance. In the limit of low tunneling, the individual wells can be regarded as …