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From https://www.technologyreview.com/2022/03/28/1048355/quantum-computing-has-a-hype-problem/ https://www.technologyreview.com/2022/03/28/1048355/quantum-... :
by abrichr 4y ago
From https://www.technologyreview.com/2022/03/28/1048355/quantum-computing-has-a-hype-problem/ https://www.technologyreview.com/2022/03/28/1048355/quantum-... :
> The qubit systems we have today are a tremendous scientific achievement, but they take us no closer to having a quantum computer that can solve a problem that anybody cares about.
-- Sankar Das Sarma, Distinguished University Professor, Condensed Matter Theory Center, Univ. of Maryland
From https://www.linkedin.com/pulse/quantum-computing-hype-bad-science-victor-galitski-1c/ https://www.linkedin.com/pulse/quantum-computing-hype-bad-sc... :
> Crazy headlines abound: "quantum computing will change life as we know it," "quantum computing will solve global warming," "Quantum computing will revolutionize science and industry," etc etc. These statements are not based on any research or reality at all, they are not even wishful thinking. The number of known quantum algorithms, which promise advantage over classical computation, is just a few (and none of them will "solve global warming" for sure). More importantly, exactly zero such algorithms have been demonstrated in practice so far and the gap between what’s needed to realize them and the currently available hardware is huge, and it's not just a question of numbers. There are qualitative challenges with scaling up, which will likely take decades to resolve (if ever).
-- Victor Galitski, Professor, Joint Quantum Institute, Univ. of Maryland
- bowsamic 4y agoWhat has that got to do with the comment you’re replying to?
- nl 4y agoThis can be true, and the part quoted by the OP ("Flash forward to today, and the race is on to build fault-tolerant quantum computers and discover new algorithms to apply them in useful ways.") can also be true. The reason we don't have "a quantum computer that can solve a problem that anybody cares about" is because of that lack of fault tolerance, not because we don't have some experimental quantum computers that work in laboratory tests.