We've all been there.
this post was submitted on 14 Jul 2023
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Which we've been told is right around the corner for decades. The issue is that QC doesn't scale up. If you try you get vastly more noise than signal. Current work in QC is all aimed at reducing that noise, but even for only 70 qbits, the current state of the art can't eliminate enough of the noise for QC to be useful in most applications.
The only places it's currently bearing any fruit is where all of the extra work to reduce noise and the delays that incurs are irrelevant because there is no classical approach at all. But even then, the costs are enormous and the benefits are miniscule.