- #211
DarMM
Science Advisor
Gold Member
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I should say this is part of why I have a hard time with results like Frauchiger-Renner.
The set up is basically:
Alice and Bob performed quantum measurements.
Wigner and Zeus then show up with superstructures built out of neutronium larger than the observable horizon. If we assume such a thing can even happen (was it built using material from outside the observable horizon?) somehow manage to circumvent the operational constraints of relativity (how?) they then perform a measurement on Alice and Bob. We can then show that if they use modal logic, generally thought to be invalid in QM anyway from earlier results like Hardy's paradox, we find a contradiction in quantum theory.
But really is this of any genuine interest?
The set up is basically:
Alice and Bob performed quantum measurements.
Wigner and Zeus then show up with superstructures built out of neutronium larger than the observable horizon. If we assume such a thing can even happen (was it built using material from outside the observable horizon?) somehow manage to circumvent the operational constraints of relativity (how?) they then perform a measurement on Alice and Bob. We can then show that if they use modal logic, generally thought to be invalid in QM anyway from earlier results like Hardy's paradox, we find a contradiction in quantum theory.
But really is this of any genuine interest?