Controlling the quantum entanglement between parts of a many-body system is key to
unlocking the power of quantum technologies such as quantum computation, high-precision …

The quantum statistics of atoms is typically observed in the behavior of an ensemble via
macroscopic observables. However, quantum statistics modifies the behavior of even two …

Transforming an initial quantum state into a target state through the fastest possible route—a
quantum brachistochrone—is a fundamental challenge for many technologies based on …

Optical frequency division by using frequency combs has revolutionized time kee** and
the generation of stable microwave signals. We demonstrate optical frequency division and …

We report on the experimental realization of electric quantum walks, which mimic the effect
of an electric field on a charged particle in a lattice. Starting from a textbook implementation …

We implement a microscopic spin filter for cold fermionic atoms in a quantum point contact
(QPC) and create fully spin-polarized currents while retaining conductance quantization …

We present a discrete-time, one-dimensional quantum walk based on the entanglement
between the momentum of ultracold rubidium atoms (the walk space) and two internal …

Atomic interferometers measure forces and acceleration with exceptional precision. The
conventional approach to atomic interferometry is to launch an atomic cloud into a ballistic …

We show that the presence of an interaction in the quantum walk of two atoms leads to the
formation of a stable compound, a molecular state. The wave function of the molecule …

We introduce a primary thermometer which measures the temperature of a Bose-Einstein
Condensate in the sub-nK regime. We show, using quantum Fisher information, that the …