Subject

Physical sciences

Physics, chemistry, astronomy, materials and the mathematical sciences.

PhysicsChemistryAstronomy and planetary scienceMaterials scienceMathematics and computing

10 articles

Article Open access

Millisecond spin coherence at room temperature in a layered magnet

Spin defects hosted in a two-dimensional magnet stay quantum-coherent for more than a millisecond under ambient conditions, pointing to thin, integrable quantum sensors.

Sun-hee Becker, Diego Raman … Carlos Haddad

Lumen 3, 1–9 (2026)

Review Article Open access

Active matter: from bacterial swarms to robot collectives

Systems made of self-propelled units—from cells to robots—obey shared physical principles that are only now coming into focus.

Aisha Ivanova, Leila Kim … Priya Raman

Lumen 3, 21–30 (2026)