The Toffoli Gate in Three-Qubit System (IMAGE) University of Science and Technology of China Caption This is the Toffoli Gate in a three-qubit system. Credit University of Science and Technology of China Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.