Quantum key distribution (QKD) is a family of protocols for growing a private encryption key
between two parties. Despite much progress, all ground-based QKD approaches have a …

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 …

Owing to the low-gravity conditions in space, space-borne laboratories enable experiments
with extended free-fall times. Because Bose–Einstein condensates have an extremely low …

As a powerful tool in scientific research and industrial technologies, the cold atom absolute
gravity sensor (CAGS) based on cold atom interferometry has been proven to be the most …

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 research on cold-atom interferometers gathers a large community of about 50 groups
worldwide both in the academic and now in the industrial sectors. The interest in this sub …

We report the status of the Cold Atom Lab (CAL) instrument to be operated aboard the
International Space Station (ISS). Utilizing a compact atom chip-based system to create …

Microgravity eases several constraints limiting experiments with ultracold and condensed
atoms on ground. It enables extended times of flight without suspension and eliminates the …

The extreme miniaturization of a cold-atom interferometer accelerometer requires the
development of novel technologies and architectures for the interferometer subsystems …

Recent developments in quantum technology have resulted in a new generation of sensors
for measuring inertial quantities, such as acceleration and rotation. These sensors can …