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> Perhaps qubits could be constructed in the same way fuzzy bits are -- use a device which writes multiple pieces of data at a higher resolution -- then measure that data with a device that reads at a lower resolution. https://www.nature.com/articles/s41534-019-0217-0 If I understand, you mean all that in order to achieve quantum computing cheaper. As far as I know, the effects used and needed in quantum computing aren't just "randomness" of reading something but much more. The physicists do attempt to achieve the "quantum simulation" effects as cheaply as possible, and until now they had to depend on complex setups: "These quantum devices can be implemented in a large number of ways, for example, using ultracold trapped ions6,7,8,9,10,11 cavity quantum electrodynamics (QED),12,13,14,15 photonic circuits,16,17,18 silicon quantum dots,19,20,21 and theoretically even by braiding, as yet unobserved, exotic collective excitations called non-abelian anyons.22,23,24 One of the most promising approaches is using superconducting circuits,25,26,27" One example: https://www.nature.com/articles/nphys2253 It doesn't appear to me that the "unreliable bits" read from the magnetic medium could be enough. (Disclaimer: not in that field.) It's however always interesting to learn more while trying to make some idea work. |