On Thu, Dec 12, 2024 at 11:17 AM PGC <[email protected]> wrote:
> From Neven's blog, who thinks Quantum Computing supports MWI indirectly: > https://blog.google/technology/research/google-willow-quantum-chip/ > *> The key argument linking* *Google's results to MWI is this: > Quantum error correction assumes the universal applicability of unitary > evolution, the cornerstone of quantum mechanics under MWI.The increasing > fidelity of error correction as systems scale, suggests that quantum > effects persist robustly, even in larger, more complex systems. This > bolsters the plausibility that the universe operates as a fully quantum > system without invoking wavefunction collapse. If the multiverse exists as > described by MWI, then the success of large-scale quantum computing is a > natural consequence, as each computation's branching outcomes correspond to > the different branches of the multiverse. [ ...] Copenhagen might require > ad hoc explanations to justify why quantum error correction apparently > aligns with the formalism of the wavefunctionIt appears more > straightforward with MWI (Warning: I am not MWI proponent/advocate): The > redundancy encoded in error correction exists across all branches, with > amplitudes adjusted to represent error-free computations. No "collapse" > mechanism is required; the wavefunction evolves deterministically according > to Schrödinger's equation. [...] This support comes not as > convincing/direct proof of MWI but through Occam: MWI requires fewer > additional assumptions than collapse theories to account for the observed > success of quantum error correction.* > *If Quantum Computers ever become practical, and is looking increasingly likely that they will, among those whose job it is to write programs for those machines, Many Worlds is likely to become much more popular than its rivals because to write computer code with efficiency it's necessary to form a mental picture about what's going on and, because of Occam, it's much easier to do that with Many Worlds than with Copenhagen or Pilot Wave. And textbooks about how to write code for Quantum Computers are likely going to take that approach also, which will greatly influence the next generation of physicists; unless of course AI turns out to be the one that writes all the code. * * John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* 2vs > > > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/CAJPayv3ReYAUoM%2BFRpNE_K-EDTenY6_Apu4OMueRAws8JvHYLg%40mail.gmail.com.
