Purifying silicon for computer chips dates back to the 1950s, and while the industry has arrived at viable purity standards for conventional computer chips, quantum computing demands purer silicon still. So researchers in England have developed ways to eliminate the isotopes that disrupt the delicate qubit states in the silicon. This process could make silicon-based quantum computing more feasible and cost-effective.The Silicon-28 (28Si) isotope makes up more than 90 percent of natural silicon. ...