Teleport Heat = no quantum computers
Well, given that 2019 research paper, where MIT (?) discovered they could teleport heat, you can see why Quantum Computing will only ever be a modern version of an analogue computer. Consider the 'heat teleportation" discovery from last year and consider what you're looking at in that system and why it could never work.
Take two neutral particles e.g. N1 and N2. N1 and N2 are *not* passing heat to one another, no teleportation of heat.
1) There are no real neutral particles by observation. Neutrons are not neutral, splay them out and they're formed from balanced charges. The smallest possible thing must be light, to be an electro-magnetic wave across space, light must have a splay of charges across space. So it too must be a balance of charges, not a single neutral entity. Since every neutral particle can ultimately be converted to photons, they must also be a balance of charges.
2) N1 and N2 are in motion, detect their position at t1, detect it again at t2 and its in a different place. IT'S MOVED ergo its in motion!
3) Since they are charged, there must be a force between them and that force must be electric in nature.
4) In order for that force not to move N2 with respect to N1, both N1 and N2 must be moving the same. So that motion 2) must be resonant electric. A sort of synchronized dance.
5) OK, so we have N1 and N2 particles doing a synchronized dance. But N2 does not move with respect to N1, so the N2 dance must end up at the same place with respect to N1. In other words we have a dance over an electric field that overall goes nowhere.
6) If they were not in resonance then a force would apply from one to the other as it moves and so you would be passing energy aka heat.
So quantum entanglement, the fact that motion effects correlate (whether that motion is up down oscillation, or angle of oscillation or spin or some more complex oscillatory motion), is simply because everything is doing that! The reason atomic clocks oscillate the same is not magic, its because they're doing this resonant dance. They're not going through every possible state till detected, they really are moving.
So you're quantum computer isn't in all states till it locks to the best state and it will find sub-optimal solutions for which better solutions exist. The proof is obviously to find better solution using current techniques and then prove that the quantum computer isn't going through all possible states, because it didn't go through the optimal one. I believe this has already been proven several times.
Likewise the spin-off quantum encryption is worthless. It's just filtering by that 'successful entanglement' signal, the same flaw in all entanglement experiments.
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Look, there's lot of obvious things in that 2019 experiment staring you in the face:
Mass for example, you have a motion that returns to the same place after some time in some repeating pattern. i.e. a form of energy that is not in motion.... that's mass. And given the only thing there is electric in nature, it must be a motion over an oscillating electric field. That "stationary electric energy" must be mass because otherwise what is it!
If N1 and N2 were not in resonance then a force would be applied between them, and they wouldn't return to the same place, N2 would return to a different place with respect to N1, and N1 a different place with respect to N2. i.e. That component of the motion you call momentum is the same motion as mass. It's just whether it returns to the same place or not with respect to the observer!
The faster it moves, the less mass it has and the more momentum it has, up to the limit case where it is all momentum and no mass... that's light/photons, whatever you want to call that limit case.
And if you push N2 at resonance with N1 at resonance, then you have something to push against. The further N2 is out of resonance with respect to N1, the less of a component you have to push against and the harder it is for N1 to push N2. You wonder why it gets harder and harder to accelerate things, the faster they go, in a magnetic field? It's because that F/2 component becomes skewed more and more with respect to your accelerator coils!
And since electrons also do the resonance dance of 2), because they too keep moving when you measure their position, then any electric field you've made with electrons has been an oscillating field at resonance. You've never experimented with electric force, only an oscillating version of it at local resonance!
Electric force itself (the non-oscillating kind) must propagate infinitely fast, since all paths through space must be in resonance, the force must take zero time to propagate. And that makes sense of course, because the same force must bind those charges in photons that must occur from 1), and since photons travel at the speed of light, the force binding them couldn't propagate at the speed of light, it would be impossible.
And mass is all relative. A photon N2 has ~0 mass with respect to detector N1, but from the point of view of the photon, N1 has ~0 mass. From the photons point of view N1 is all skewed out across motion and has no mass. All of N1's energy is in its momentum! And ~0 of it in mass. At least from the point of view of the N2 light.