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 observe two consecutive heteronuclear Efimov resonances in an ultracold Li-Cs mixture
by measuring three-body loss coefficients as a function of magnetic field near a Feshbach …

In few-body physics, Efimov states are an infinite series of three-body bound states that obey
universal discrete scaling symmetry when pairwise interactions are resonantly enhanced …

Understanding and controlling collisions is crucial to the burgeoning field of ultracold
molecules. All experiments so far have observed fast loss of molecules from the trap …

We consider the ground-state properties of an impurity particle (“polaron”) resonantly
interacting with a Bose-Einstein condensate (BEC). Focusing on the equal-mass system, we …

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 …

The Bose polaron is a quasiparticle of an impurity dressed by surrounding bosons. In few-
body physics, it is known that two identical bosons and a third distinguishable particle can …

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

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 …