New silicon-based quantum bits produce photons that may provide the basis for quantum internet

Their wavelength of light matches that used in today’s optical fibre communications, giving them a massive headstart.

A single T centre qubit in the silicon lattice (render), which supports the first single spin to ever be optically observed in silicon. The constituents of the T centre (two carbon atoms and a hydrogen atom) are shown as orange, and the optically-addressable electron spin is in shining pale blue. Credit: Photonic.