A recent rejuvenation of experimental and theoretical interest in the physics of few-body
systems has provided deep, fundamental insights into a broad range of problems. Few-body …

We provide a general discussion on the importance of three-body Efimov physics for
strongly interacting ultracold quantum gases. Using the adiabatic hyperspherical …

The binding energy of an Efimov trimer state was precisely determined via radio-frequency
association. It is found that the measurement results shift significantly with temperature, but …

Here we present a four-channel model that incorporates a magnetically tunable Feshbach
resonance in a system of three atoms that interact via pairwise van der Waals interactions …

Recent advances in controlling interatomic interactions, coupled with new techniques for
producing and interrogating exotic regimes in ultracold quantum gases, have resulted in the …

The concept of contact interaction is fundamental in various areas of physics. It simplifies
physical models by replacing the detailed short-range interaction with a zero-range contact …

The quantum mechanical few-body problem at ultracold energies poses severe challenges
to theoretical techniques, particularly when long-range interactions are present and decay …

We study ultracold three-body collisions of bosons and fermions when the interatomic
interaction is tuned near a narrow Feshbach resonance. We show that the width of the …

We consider the Efimov trimer theory as a possible framework to explain recently observed
losses by inelastic three-body collisions in a three-hyperfine-component ultracold mixture of …

We compare effective hyperradial three-body potentials calculated using the S-wave part of
the Faddeev equations to calculations using the full Schrödinger equation. As two-body …