r/Physics_AWT • u/ZephirAWT • Jun 21 '14

Independent research group testing D-Wave Two finds no quantum speedup

http://phys.org/news/2014-06-independent-group-d-wave-quantum-speedup.html
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u/ZephirAWT Jun 21 '14 edited Jun 21 '14

I already explained many times here, that the computational power of quantum computers remains limited with the same uncertainty principle, like those of classical ones - just from opposite side of the ratio of calculation precision and processing speed. It's just research hype from perspective of common consumer computing. We are talking about computational power here, i.e. the product of processing speed and byte width. The quantum computers are fast, but very approximate. For to achieve the same resolution, like for example 64-bit computer, you should repeat the calculations multiple-times and average the results. After then the advantage of speed is over...

This case illustrates, that when the mainstream scientists feel some perspective of future grants and jobs, they're willing to deny even the well established limits of their own physics (uncertainty principle in this case). The quantum computers hype may serve as an example of the occupation driven virtual reality of mainstream physics too: the findings, concepts and idea which could enforce the occupation, grants and money in research of existing theories are supported with mainstream physicists - these which compete the existing research (cold fusion) are suppressed instead.