Google claims 'quantum supremacy'; others say hold on a qubit

Google said on Wednesday it had achieved a breakthrough in computer research, by solving a complex problem in minutes with a so-called quantum computer that would take today's most powerful supercomputer thousands of years to crack. Official confirmation of the breakthrough in quantum computing came in a paper https://ift.tt/2obkV9z published in science journal Nature, after weeks of controversy following the leak of a draft, over whether Google's claim of "quantum supremacy" was valid.

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