Quantum computers don't exist yet. But if they did, a quantum computer would be able to solve certain problems much faster than a normal computer. Making a quantum computer is a huge challenge. The main problem is finding something that can store a 'qubit'.
At Oxford University they can store a qubit on an atom and trap that atom in a buckyball, a nanoparticle that is a little hollow cage of carbon atoms.
|Artists impression of an atom trapped in a buckyball.|
Image: Chris Ewels