Scaling quantum computers is also a significant challenge.
Scaling quantum computers is also a significant challenge. While there are several different quantum solutions, many do not use standard CMOS manufacturing processes, which means they do not scale with the advanced semiconductor processes used for other high-end processors or accelerators. Additionally, the entire system needs to scale with the number of qubits, which means more wires connecting each individual qubit to the control logic, plus the associated cooling elements. If you look at current quantum computers when they are not in a refrigerator, they look more like a jumble of tubes and wires than a silicon-based system. Scaling these systems is not an easy task.