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Scott Aaronson on Google's quantum supremacy leaked paper
It seems a paper between Google and NASA accidentally leaked a couple of days ago, saying that a group at Google has now achieved quantum computational supremacy with a 53-qubit superconducting device. According to Scott Aaronson, a noted quantum-computation expert, this is a Big Deal and a significant moment in scientific progress:
It’s like, have a little respect for the immensity of what we’re talking about here, and for the terrifying engineering that’s needed to make it reality. Before quantum supremacy, by definition, the QC skeptics can all laugh to each other that, for all the billions of dollars spent over 20+ years, still no quantum computer has even once been used to solve any problem faster than your laptop could solve it, or at least not in any way that depended on its being a quantum computer. In a post-quantum-supremacy world, that’s no longer the case. A superposition involving 250 or 260 complex numbers has been computationally harnessed, using time and space resources that are minuscule compared to 250 or 260.

I keep bringing up the Wright Flyer only because the chasm between what we’re talking about, and the dismissiveness I’m seeing in some corners of the Internet, is kind of breathtaking to me. It’s like, if you believed that useful air travel was fundamentally impossible, then seeing a dinky wooden propeller plane keep itself aloft wouldn’t refute your belief … but it sure as hell shouldn’t reassure you either.
google  programming  quantum-computing  qubits  future  science  qc  history  research 
21 days ago by jm

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