(Phys.org) The University of Sussex’s Ion Quantum Technology Group has managed to address one of the biggest problems facing quantum computing: how to reduce the disruptive effects of environmental “noise” on the highly sensitive function of a large-scale quantum computer.
Hensinger’s team collaborated with theoretical scientist Dr. Florian Mintert and colleagues from Imperial College London, who proposed a theory of how one could manipulate the strange quantum effects in use inside a quantum computer. The theory allows—making use of the strange properties of quantum physics—the execution of quantum computations in such a way that changes in the initial operational parameters of the machine do not lead to a substantial change in the end result of the computation. This in turn helps to insulate the quantum computer from the effects of environmental ‘noise’.

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