BACKGROUND Levitation of large objects has become a widely used technique in science
and engineering, and the control of levitated nano-and micro-objects in vacuum has gained …

Quantum atomic and molecular gases are flexible systems for studies of fundamental many-
body physics. They have traditionally been produced in harmonic electromagnetic traps and …

Quantum mechanics governs the microscopic world, where low mass and momentum reveal
a natural wave–particle duality. Magnifying quantum behaviour to macroscopic scales is a …

In contrast to light, matter-wave optics of quantum gases deals with interactions even in free
space and for ensembles comprising millions of atoms. We exploit these interactions in a …

Substantial leaps in the understanding of quantum systems have been driven by exploring
geometry, topology, dimensionality and interactions in ultracold atomic ensembles,,,,–. A …

Atomtronics is an emerging field that aims to manipulate ultracold atom moving in matter-
wave circuits for fundamental studies in both quantum science and technological …

Global-scale quantum communication links will form the backbone of the quantum internet.
However, exponential loss in optical fibres precludes any realistic application beyond few …

Atom interferometers have been developed in the last three decades as new powerful tools
to investigate gravity. They were used for measuring the gravity acceleration, the gravity …

Abstract Bose-Einstein condensates (BECs) in free fall constitute a promising source for
space-borne interferometry. Indeed, BECs enjoy a slowly expanding wave function, display …

The capability to reach ultracold atomic temperatures in compact instruments has recently
been extended into space,. Ultracold temperatures amplify quantum effects, whereas free …