Space and Time Could Be a Quantum Error-Correcting Code

Space and Time Could Be a Quantum Error-Correcting Code

In 1994, a mathematician at AT&T Research named Peter Shor brought instant fame to “quantum computers” when he discovered that these hypothetical devices could quickly factor large numbers — and thus break much of modern cryptography. But a fundamental problem stood in the way of actually building quantum computers: the innate frailty of their physical …