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Always fun waiting for Scott Aaronson to explain why the latest QC paper is bullshit. Until then can any Quantum Information experts here provide some backgrou
by stallmanite 7y ago
Always fun waiting for Scott Aaronson to explain why the latest QC paper is bullshit. Until then can any Quantum Information experts here provide some background? I read the paper but don’t trust my intuition with these kind of things.
- xwdv 7y agoEssentially it seems like they are exploring ways in which for certain computations a solution can be found before the computation has actually finished, approaching something like O(1) performance.
- deleted 7y ago[deleted]
- gus_massa 7y agoNo, the experiment takes "2t" time, "t" in the initial part and "t" in the backward part. I wrote more details in https://news.ycombinator.com/item?id=20491309 https://news.ycombinator.com/item?id=20491309
- btrettel 7y agoI think Scott Aaronson already weighed in on this: https://www.scottaaronson.com/blog/?p=4147 https://www.scottaaronson.com/blog/?p=4147
- signa11 7y agoyup, here is the money quote If there’s anything interesting here, I suppose it’s just that “scientists use a quantum computer to reverse time” is one of the purest examples I’ve ever seen of a scientific claim that basically amounts to a mind-virus or meme optimized for sharing on social media—discarding all nontrivial “science payload” as irrelevant to its propagation.