If they work, quantum computers will be able to solve complex problems exponentially faster than today's computers. Many organizations in Canada are taking a leadership position in developing the technology, such as D-Wave, Quantum Valley Investments, and the Perimeter Institute. National Post writes an overview of how quantum computing works and what some of the uncertainties are.
A boon or a bust? Quantum computing is as paradoxical as the theories that would create it
Quantum computers are almost as paradoxical as quantum theory itself. They both exist and they don't. They promise massive innovation and yet their capabilities aren't fully known. They could be up and running around the world within years, or within decades.