New results out of the Martinis lab at UCSB have shown single qubit gate fidelities of 0.98 for a superconducting phase qubit. This is significantly better than previous single qubit gate fidelities in their system and in any other superconducting qubit system. It is an extremely impressive number. (Seems that carefully crafted microwaves pulses were a big help in getting the gate fidelity to this level.) Martinis is speaking at SQUINT 2008, but just in a tutorial section. Maybe we will get lucky and a bit of these new fidelities will leak into his talk.
The Quantum Pontiffs