TechnologyGoogle on track for quantum computer breakthrough by end of 2017 The search giant is testing a 20-qubit processor, its most powerful quantum chip yet, and says it will be able to outperform ordinary computers by the end of the year 51¶¯Âþ
PhysicsReality check: The hidden connections behind quantum weirdnessQuantum theory says that stuff doesn't exist when we're not looking at it. But weirder-than-weird experiments are resurrecting a long-derided alternative Features