I think you guys are confusing applicable current technology with technology that is currently in its true infancy. When I am talking about quantum computers. I am talking about data storage at the atomic level, and structures built at the atomic level. I am not discussing any particular quantum properties such as tunneling, cryptography, or entanglement. Which would be useful for computing.
I am merely talking about true physical limitation such as imparting a spin to a single atom, and a different spin to another single atom, and using those to store data. The reason crystal being preferable is that it is highly symmetrical. Basically we are talking about technology that doesn't yet even work.
Speaking to reading Quarks. I think a fellow named Heisenberg has something to say about that and his uncertainty principle. Let alone those lovely people at the worlds atom smashers. The laws of Quantum mechanics forbid this being a viable source of data storage, and the fact that to do so means the atom in question must be smashed. Well I do not foresee a conceivable need of computers ever needing the physical assets or energy to do so.
Really that boggles the mind. Reading something that has a set state cannot confer any real data. Unlike an atom which can have two spins. A bottom Quark for example has a single state, and it must be there. In other words there cannot be an absence. Were there an absence the particle it constitutes would not exist. Not only is it not feasible in that it violates many known laws of Quantum mechanics. There would be nothing to gain by reading a subatomic particle that is unalterable. Like a sheet of paper you could write nothing on.







