Quantum Error Correction, Quantum Computing.
some mischief. It measures one of the qubits to see if it is 0 or 1. Every qubit here is + or -, both of which are a superposition of 0 and 1. So the measured qubit will randomly choose one or the other. Let’s say, for sake of argument, it chooses 0. When we get back from our tea break, we check