Correlation (IMAGE) University of New South Wales Caption An artist's impression of two qubits -- one made of two phosphorus atoms and one made of a single phosphorus atom -- placed 16 nanometres apart in a silicon chip. UNSW scientists were able to control the interactions between the two qubits so the quantum spins of their electrons became correlated. When the spin of one electron is pointing up, the other points down. Credit UNSW Usage Restrictions With appropriate caption and credit 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.