Quantum annealing with a digital twist for quantum computing
9 Jun 2016 - Rami Barends and Alireza Shabani explain on the Google blog, how quantum annealing can help with quantum computing. They say that the key to their solution is controlability. "Qubits, like other physical objects in nature, have a resonance frequency, and can be addressed individually with short voltage and current pulses. In our architecture we can steer this frequency, much like you would tune a radio to a broadcast. We can even tune one qubit to the frequency of another one. By moving qubit frequencies to or away from each other, interactions can be turned on or off. The exchange of quantum information resembles a relay race, where the baton can be handed down when the runners meet."