Gate switching of ultrafast upconverted photoluminescence from monolayer graphene

Scientists report the gate switching of ultrafast photoluminescence in monolayer graphene and analyzed its underlying mechanism both experimentally and theoretically.

Spotting nature's own evolution of quantum tricks could transform quantum technology

Physicists have developed a new test to spot where the ability to exploit the power of quantum mechanics has evolved in nature.

Topological insulating phase predicted in a new type of material

Calculations point to a new source of topological materials.