OAKLAND, Calif. : Sydney-based startup Q-CTRL, whose software helps run quantum computers more accurately, said on Tuesday it raised $27.4 million with Salesforce Ventures joining as a new investor. Quantum computers, which run their processes based on the theories of quantum physics, could one day carry out certain calculations millions of times quicker than the fastest super computers today. Billions of dollars have been invested to prepare for the moment quantum computers can outperform classical computers on important tasks as those could be industry changing, experts say.