If two layers of graphene - a single-atom-thick layer of carbon atoms similar to the graphite found in pencils - are sandwiched together and subjected to a magnetic field, they host strange quasiparticles called anyons that could be used to build qubits, the bits of information processed by quantum computers. (Image credit: Zlatko Papić)

If two layers of graphene – a single-atom-thick layer of carbon atoms similar to the graphite found in pencils – are sandwiched together and subjected to a magnetic field, they host strange quasiparticles called anyons that could be used to build qubits, the bits of information processed by quantum computers. (Image credit: Zlatko Papić)

Researchers have found experimental evidence of strange quasiparticles in graphene that could be used as qubits, the bits of information processed by quantum computers.

Graphene is a single-atom-thick lattice of carbon, but when two layers are sandwiched together and subjected to a magnetic field, strange entities can exist at the interface. Unlike the 3D world in which fundamental particles – fermions and bosons – have strictly defined properties, in the 2D universe of graphene they can meet halfway, becoming anyons.

If the newly-detected quasiparticles turn out to be of a certain type known as “non-Abelian anyons” they can be used to make qubits.

Original research paper published in the journal Science on July 4, 2014.

Names and affiliations of selected authors

Dmitry Abanin, University of Waterloo and Perimeter Institute for Theoretical Physics

Zlatko Papić, University of Waterloo and Perimeter Institute for Theoretical Physics