Cold atomic gases have become a paradigmatic system for exploring fundamental physics,
which at the same time allows for applications in quantum technologies. The accelerating …

Abstract Systems of correlated particles appear in many fields of modern science and
represent some of the most intractable computational problems in nature. The computational …

Physical systems characterized by a shallow two-body bound or virtual state are governed at
large distances by continuous scale invariance, which is broken into discrete scale …

Atoms with a highly excited electron, called Rydberg atoms, can form unusual types of
molecular bonds,,–. The bonds differ from the well-known ionic and covalent bonds, not only …

Progress in understanding quantum systems has been driven by the exploration of the
geometry, topology, and dimensionality of ultracold atomic systems. The NASA Cold Atom …

Chemical reactions in the quantum degenerate regime are described by the mixing of matter-
wave fields. In many-body reactions involving bosonic reactants and products, such as …

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 …

Magnetic Feshbach resonances allow control of the interactions between ultracold atoms.
They are an invaluable tool in studies of few-body and many-body physics,, and can be …

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 …

Vibrational dynamics in conventional molecules usually takes place on a timescale of
picoseconds or shorter. A striking exception are ultralong-range Rydberg molecules, for …