The U.S. Department of Energy’s research teams recently integrated quantum dots and donor atoms to produce qubits with little degradation. There are two primary benefits from this new qubit. First, maintaining of the quantum data stored in the spin (coherence). Second, use of silicon materials which have manufacturing infrastructure readily available. Keeping coherence high is a necessity to developing practical quantum computers. 

U.S. Department of Energy aiding development of new qubits.

This report is found at PHYS.ORG…