October 2004, page 22 —In addition to the listed advances in electrical control of semiconductor spins, Duke University’s Albert Chang and colleagues have also demonstrated electrically controlled coupling between spins in quantum dots. See C. Chen et al. , Phys. Rev. Lett.92, 176801 (2004) https://doi.org/10.1103/PhysRevLett.92.176801 and H. Jeong et al. , Science293, 2221 (2001 https://doi.org/10.1126/science.1063182 ).