Part of the lanthanide series, erbium (Er) is a rare-earth element found in a wide range of minerals like blomstrandine, polycrase, fergusonite, euxenite, xenotime, and gadolinite. C.G. Mosander ...

Random wavelengths: artist's impression of a method for measuring and controlling quantum spins developed at Princeton University. (Courtesy: Rachel Davidowitz) The spin states of entangled erbium ...

Erbium-doped fiber amplifiers (EDFAs) are devices that can provide gain to the optical signal power in optical fibers, often used in long-distance communication fiber optic cables and fiber-based ...

Researchers in southern Germany made a novel optical resonator that they say looks ideal for the construction of quantum networks. The collaboration featuring the Max Planck Institute of Quantum ...

China’s Ministry of Commerce recently announced plans to expand its export control list to include five additional rare earth ...