Why does Yuri Manin not get more credit for independently arriving at the idea in 1980 in Computable and Uncomputable? Learned that from your 2000 paper Intro to Quantum Algorithms. Did Feynman improve on Manin’s work in a way that I’m missing, or is he just more popular?
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Feynman's 1985 paper (which yesterday was the 35th anniversary of) went well beyond both Feynman's 1982 paper and Manin's 1980 note in working out possible details of quantum computers. Deutsch's 1985 paper should probably be considered comparable.
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When I first read it my first thought was "So are quantum computers being used to simulate quantum systems yet?" .. what's the answer?
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It depends on what you mean by "quantum computers". Special-purpose quantum simulators are being used, but Google discounts these so they can claim they achieved quantum supremacy first. (These quantum simulators can't do quantum chemistry; neither can today's quantum computers.)
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I wasn't even born when Feynman wrote that paper so I would appreciate your insight. I was intrigued by the citation patterns in early QC when I took a grad course. For example, the Feynman paper was not mentioned in any of the early papers https://scholar.google.com/scholar?start=0&hl=en&as_sdt=0,22&sciodt=0,22&as_ylo=1985&as_yhi=1988&cites=4964616921671175132&scipsc= …
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For example -- even the Deutsch article that came out later https://www.cs.princeton.edu/courses/archive/fall04/cos576/papers/deutsch85.pdf … which seems pretty relevant. Is it because the importance of that paper became clear in hindsight? Or that theoretical (of the TCS bent) work distinguished from what F was trying to get at?
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I remember reading the paper in his lectures on computation. Good stuff!
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He actually did more than just write a a paper on it. He tried to actually write programs for the implementation while working on the connection machine.
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and it is even more incredible to be able to imagine what will take us in the next few years.
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