超导量子比特图解指南

Superconducting qubits are made of tiny circuits of materials that conduct electricity with zero resistance at ultracold temperatures. The energy level of the circuit determines a qubit’s state: when the circuit absorbs a microwave photon, the qubit jumps from the ground state (0) to the first excited state (1). Some scientists favor these qubits because they can perform operations very quickly. A Qubit Field Guide Scientists are exploring many different platforms for quantum computers STATE 0 Current absent Josephson junction (allows for electron pair tunneling between superconducting layers) TEXT BY CLARA MOSKOWITZ GRAPHICS BY BEN GILLILAND AND AMANDA HOBBS AROUND THE WORLD researchers are racing to build computers that take advantage of the bizarre rules of quantum mechanics. …