In a new Physical Review Letters study, researchers propose an experimental approach that could finally determine whether gravity is fundamentally classical or quantum in nature. The nature of gravity ...

A ball tossed into the air follows a path that classical physics can track with confidence. Shrink that ball down to the size of an atom, though, and the rules usually change. At that scale, particles ...

Quantum memories, systems that store and retrieve information leveraging quantum mechanical effects, can outperform classical ...

Defining security in quantum key distribution with Carla Ferradini, Martin Sandfuchs, and Renato Renner The security of quantum key distribution (QKD) is quantified by a parameter ε >0, which—under ...