This is coupled to a photon racetrack carved out of silicon. A C-NOT logic gate requires two input photons. So the circuit works by zapping the quantum dot twice, generating two photons.

This allows the gate capacitance to be discharged rapidly. To significantly widen the number of transformer choices, the circuit uses a primary drive scheme that does not require a separate reset ...

The circuit shown is pretty simple, with three inputs going into a combination of AND and NOT gates before going into an OR gate. The static hazard manifests as a glitch in the output when the ...