IBM, D-Wave and Google are the major players in quantum computing research, with each taking a different route towards developing a Universal Turing Machine using qubits; a machine that can perform all the computations of a traditional processor but at speeds exponentially faster. Before the research discussed in this article at Nanotechweb, Google had focused on adiabatic solution which is essentially a quantum computer purpose built to solve a particular problem, not a machine capable of performing any data manipulation problem presented. They have switched tactics have digitized their adiabatic quantum computer to allow for error correction and to allow for non-stoquastic interactions. This should, in theory, allow for scalability thanks to the unique direction the research is taking. The reading is rather heavy, especially if you follow the link to Nature but very interesting if you are curious about new methods of developing quantum computers.
"Bringing together the best of two types of quantum computer for the first time, researchers at Google have created a prototype that combines the architecture of both a universal quantum computer and an analogue quantum computer."
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