The realization of ultracold molecules in higher bands of an optical lattice sets the stage for the study of the interplay between orbital physics and the Bose–Einstein condensation and Bardeen–Cooper–Schrieffer superfluidity crossover.

Measurements on a single artificial atom—a quantum dot—coupled to an optical cavity show scattering dynamics that depend on the number of photons involved in the light–matter interaction, which is a signature of stimulated emission.

Solid-state systems are established candidates to study models of many-body physics but have limited control and readout capabilities. Ensembles of defects in diamond may provide a solution for studying dipolar systems.

It is very challenging to model hydrogen at high pressures and low temperatures because quantum effects become significant. A state-of-the-art numerical study shows that these effects cause important changes to the predicted phase diagram.

Reflection cannot only occur at interfaces in space but also in time. Transmission-line metamaterials support time interfaces at which interference has been observed, forming a temporal version of a Fabry–Pérot cavity.

The observation of band structure features typical of the kagome lattice in FeGe suggests that an interplay of magnetism and electronic correlations determines the physics of this material.

The nautical mile and knot were acknowledged by the International Bureau of Weights and Measures. Bart Verberck wonders why this is not the case anymore.

Driven by curiosity and creativity, materials that are diverted from their intended use may lead to surprising insights. We take a moment to celebrate the playful side of physics.

Bibliometric evaluation causes competition and stalls scientific progress. We need to abandon it and encourage collaboration.

Standards recommended by the International Organization for Standardization are often hidden in plain sight. Angelique Botha, Chair of ISO/TC 334 for Reference Materials, tells us where to look.