Graduate Is MWI Considered Local in Quantum Mechanics?

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The Many-Worlds Interpretation (MWI) of quantum mechanics is debated regarding its locality, with some arguing it cannot be considered local due to its reliance on Hilbert space rather than traditional space-time. The discussion emphasizes that all interpretations of quantum mechanics share the same mathematical foundation, complicating the definition of "local." Critics point out that MWI's implications, such as Bell inequality violations, challenge the notion of locality, while others suggest the term "alocal" may better describe MWI's nature. The conversation also highlights the confusion surrounding the concept of existence within MWI, distinguishing between fundamental and emergent existence. Ultimately, the debate centers on clarifying definitions and understanding the implications of MWI in the context of quantum mechanics.
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PeterDonis said:
There are no "idler photons" in the experiments discussed.
Oops.
 
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