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Quantum Computing articles
Quantum Computing
Physicists at McGill University in the US now have a system where they can measure the energy involved in adding electrons to semiconductor nanocrystals, which are known as quantum dots. The research team has built a 'cantilever force sensor' that can remove individual electrons that have been added to a quantum dot. The energy of this interaction can be measured. This is anticipated to be important in replacing the silicon chip. …
Quantum Computing
Researchers from Helsinki University of Technology (Finland), University of New South Wales (Australia), and University of Melbourne (Australia) have succeeded in building a working transistor, whose active region composes only of a single phosphorus atom in silicon. The results have just been published in Nano Letters. The working principles of the device are based on sequential tunneling of single electrons between the phosphorus atom and t…