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This post is pretty dense with misconceptions. The two main points that I would like to clarify: 1. In practice classical computers (as in "Intel CPUs") are be
by krastanov 10y ago
This post is pretty dense with misconceptions. The two main points that I would like to clarify:
1. In practice classical computers (as in "Intel CPUs") are better at solving the specific problem D-wave is trying to solve (timewise and pricewise).
2. In theory quantum computers can not solve NP problems exponentially faster than classical computers (a strongly believed conjecture).
- dmfdmf 10y agoFine. I concede your points (except the part about being "dense" with errors). The essence of my argument still stands and you can easily recast my argument, if you cared to think about it, in a form that is consistent with your vastly superior knowledge of QM, QC, P=NP, etc. If your point #1 is true then how can DW sell a single computer? That makes no sense on the face of it. Do you propose that their customers are buying them in an act of charity or that they are too stupid to notice its a scam? Don't forget these machines sell for millions of Thalers. Clearly, to make a sale DW must have demonstrated some thing superior to the Intel or standard CPU in solving some kind of problem. My guesses at "thing" and "kind" are wrong but my argument stands. The gist of the issue for me is that DW is claiming to cohere 2000 qbits when the "state of the art" is a handful, at best. So I say, let's see sales contract and check out what are they really selling. That point stands despite your objections too.
- krastanov 10y agoA big part of how they sell those machines is indeed PR, and this annoys a lot of quantum information researchers. My guess is that those who buy their machines are just trying to cover all their bases. I do have to concede that their hardware is an interesting exercise in engineering, but nothing more.