1 research outputs found
Globally controlled artificial semiconducting molecules as quantum computers
Quantum computers are expected to be considerably more efficient than
classical computers for the execution of some specific tasks. The difficulty in
the practical implementation of thoose computers is to build a microscopic
quantum system that can be controlled at a larger mesoscopic scale. Here I show
that vertical lines of donor atoms embedded in an appropriate Zinc Oxide
semiconductor structure can constitute artificial molecules that are as many
copy of the same quantum computer. In this scalable architecture, each unit of
information is encoded onto the electronic spin of a donor. Contrary to most
existing practical proposals, here the logical operations only require a global
control of the spins by electromagnetic pulses. Ensemble measurements simplify
the readout. With appropriate improvement of its growth and doping methods,
Zinc Oxide could be a good semiconductor for the next generation of computers