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"You need to walk before you can run," says professor of computer science

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Summary
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76% Informative

Google became the first to declare it had achieved quantum supremacy in 2019 .

The term "quantum supremacy" was coined in 2012 by John Preskill , a professor of theoretical physics at Caltech .

The number of qubits — the quantum equivalent of bits — required to implement them at sufficient scale to show an advantage is far beyond what's available with today 's quantum processors.

Google and Quantinuum are the only two quantum supremacy experiments still standing.

A definitive achievement of quantum supremacy will require either a significant reduction in quantum hardware's error rates or a better theoretical understanding of what kind of noise classical approaches can exploit to help simulate the behavior of error-prone quantum computers.

But Fefferman wouldn't be surprised if classical approaches are developed that can simulate these experiments in the future.

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89

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93

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informal

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English

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62

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long-living