This article reviews theoretical and experimental advances in Efimov physics, an array of
quantum few-body and many-body phenomena arising for particles interacting via short …

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 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 …

The field of few-body physics has originally been motivated by understanding nuclear
matter, but in the past few years ultracold gases with tunable interactions have emerged as …

We measure the critical scattering length for the appearance of the first three-body bound
state, or Efimov three-body parameter, at seven different Feshbach resonances in ultracold …

We perform precise studies of two-and three-body interactions near an intermediate-strength
Feshbach resonance in K 39 at 33.5820 (14) G. Precise measurement of dimer binding …

Efimov trimers are exotic three-body quantum states that emerge from the different types of
three-body continua in the vicinity of two-atom Feshbach resonances. In particular, as the …

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

Using a combination of bound-state spectroscopy and loss spectroscopy, we pinpoint eight
intrastate Feshbach resonances in K 39, as well as six previously unexplored interstate …

Efimov physics is a universal phenomenon in quantum three-body systems. For systems
with resonant two-body interactions, Efimov predicted an infinite series of three-body bound …