ScienceDaily: Computers & Math News

People adopt different social behavior depending on the context they're in. A deeply generous friend may be a cutthroat colleague, for example. Using a game theory framework, researchers find that context-dependent behavior doesn't stop cooperation from flourishing, especially when behavioral strategies can 'spillover' between social settings.

Researchers have developed a new approach for shape changing at the material level. They use rubber, metal, and temperature to morph materials and fix them into place with no motors or pulleys.

Signatures for a novel electronic phase that enables charge to flow spontaneously in loops have been observed in a kagome superconductor. Using ultra-sensitive muon spin spectroscopy, researchers discovered time-reversal symmetry-breaking magnetic fields inside the material, indicating the existence of long-searched-for 'orbital currents'.