Bismuth in Silicon for Quantum Information

Bismuth in Silicon

A bismuth atom in one slice of a silicon crystal. The large light green cloud shows the possible positions of the bound electron’s wavefunction, and the purple arrow is its spin. The bismuth nuclear spin (blue arrow) can tilt in ten different directions, shown in red and yellow. Artwork by Manuel Vögtli (LCN).  Please see article in Highlights under Research and Facilities for more information.