quantum information

Quantum Dots and Donor Atoms

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. 

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Qubit Control thru Silicon and Magnetism

Silicon-based qubits have spin-orbits which are manipulated with magnetic fields more readily than other means available. Designers from the University of Wisconsin-Madison created the experimental device, based on silicon. Research scientists from Purdue University and the Technological University of Delft conducted the experimentation. The spin-orbit strength was found to be dependent on magnetic fields from external sources coupled with the silicon surface material; where qubits reside as quantum dots.

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