[krastanov]

"Quantum tech" is regrettably much too overloaded of a term.

The "quantum annealers" that D-Wave sells are not known to be more powerful than classical computers. For the moment, at best, they are interesting analog computers.

Quantum computers (either the circuit model or equivalently the quantum adiabatic computer model) are conjectured to be much more powerful than classical computers, but they are quite a bit different from D-Wave's quantum annealers (for starters, they are supposed to be able to keep all their qubits in a pure entangled state, which D-Wave definitely can not do). There are various experimental hardwares that are able to keep a handful of qubits entangled, but we will need thousands (if not millions) before being able to do anything useful with them.