Gauge color codes

25 06/2014

Wednesday, 25 Jun. 2014, 14:00 - 15:00

Presenter: Dr. Héctor Bombín
Host: F. Verstraete
Where: Ernst Mach Hörsaal, 2nd floor, Boltzmanngasse 5, 1090 Vienna

I will describe a new class of topological quantum error correcting codes with surprising features. The construction is based on color codes: it preserves their unusual transversality properties but removes important drawbacks. In 3D, the new codes allow the effectively transversal implementation of a universal set of gates by gauge fixing, while error-detecting measurements involve only 4 or 6 qubits. Furthermore, they do not require multiple rounds of error detection to achieve fault-tolerance.