Bismuth Atoms as Quantum Bits

silicon bismuth
A bismuth atom, seen here in a slice of silicon crystal, makes an excellent quantum bit.  

A bismuth atom in one slice of a silicon crystal is shown in this simulated image. Physicists have discovered that bismuth atoms in silicon are excellent quantum bits. Quantum bits are the computing elements inhypothetical quantum computers, which should be able to solve difficult problems far beyond the abilities of conventional computers. 

Related Abstract

Gray arrow  Quantum information in silicon: Initialization, manipulation, storage and readout

Reporters and Editors

Reporters may freely use this image. Credit format: Artwork by Manuel Voegtli (London Centre for Nanotechnology)(2011).