Layering quantum materials can produce interesting phenomena by combining the different behaviour of electronic states in each layer. A layer-sensitive measurement technique provides insights into the physics of a magnetic topological insulator.

In quantum chromodynamics, the condensation of quark–antiquark pairs breaks the chiral symmetry of vacuum. Experiments with pionic tin atoms demonstrate that the symmetry is partially restored at high densities.

Large-system molecular dynamics simulations of films of glass-forming polymers reveal spatially long-range tails of interface-driven gradients of the glass transition temperature, suggestive of a combined local caging and long-range collective elasticity origin of relaxation and vitrification in glass-forming liquids.

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.

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.