NTT technical review
Coherent Coupling between 4300 Superconducting Flux Qubits and a Microwave Resonator
Yuichiro Matsuzaki, Kosuke Kakuyanagi, Hiraku Toida, Hiroshi Yamaguchi, William J. Munro, Shiro Saito
Abstract
1 Qubit: In classical computation, a bit to store information can represent either 0 or 1.However, a quantum bit (qubit) obeys quantum mechanics, so the state of a qubit can contain a superposition of 0 and 1. *2 Josephson junction: A structure composed of two superconductors coupled by a thin insulator.This induces a supercurrent that flows without applied voltage due to a tunneling effect.