Not all researchers agree that D-Wave Systems has created a quantum computer. That's not stopping some interesting investors from taking a chance on the Vancouver-based company.

The latest to put their money down, as part of a $30 million funding round, are an investment vehicle for Amazon.com CEO Jeff Bezos and In-Q-Tell, a venture fund that invests on behalf of the Central Intelligence Agency and other parts of the U.S. intelligence community. D-Wave has been at this a long time, and raised close to $100 million.

"It's...