Argh it’s been a while. The question is whether an n-qbit system actually has 2n distinguishable states for arbitrary values of n: Such a system might work up to a certain number, but then lose coherence once you try to exceed what the universe can actually compute. As far as I know we simply don’t know because noone has yet built a system that actually pushes boundaries in earnest.
It would still mean ludicrously miniaturised computing, in fact, minimised to a maximum extent, but it would not give the asymptotic speedup cryptologists are having nightmares about.
Argh it’s been a while. The question is whether an n-qbit system actually has 2n distinguishable states for arbitrary values of n: Such a system might work up to a certain number, but then lose coherence once you try to exceed what the universe can actually compute. As far as I know we simply don’t know because noone has yet built a system that actually pushes boundaries in earnest.
It would still mean ludicrously miniaturised computing, in fact, minimised to a maximum extent, but it would not give the asymptotic speedup cryptologists are having nightmares about.