and visible light waves
This type of technology could not be possible without manipulation of visible light. Usually, light waves pass through each other without doing effecting one another, but in 2013, scientist at the Vienna University of Technology have found ways to get photons to react strongly with one another, making this technology possible. Since then, quantum computers have become a very real thing. Right now they take up entire warehouses, as they are unstable and such like tradition transistor computers once were, but that hasn't stopped Google and the NSA from launching their own.
Quantum Computing Gates, Inputs, and Outputs
The traditional sends electric signals though a series of gates.
The quantum computer sends light through a series of photon routers and particles.