An international group of physicists has traced the origin of an electromagnetic interaction to the Dirac equation, a fundamental equation of quantum physics. The interaction couples the spin of the ...

An important electronic property of graphene has been simulated for the first time using ultracold atoms. The experiment was carried out by physicists in Switzerland, who reproduced graphene’s ...

Dirac cones, named after the renowned physicist Paul Dirac, are unique features found in the electronic band structures of certain materials, such as graphene and topological insulators. These cones ...