Does local MWT require hidden variables?

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SUMMARY

The discussion centers on the interpretation of Many-Worlds Theory (MWT) in relation to hidden variables in quantum mechanics. Participants debate whether MWT necessitates hidden variables or can operate solely on principles of superposition and interference. It is established that option (b) aligns with the Many-Worlds Interpretation (MWI), which posits that the wavefunction represents reality and accounts for quantum phenomena without invoking hidden variables. This interpretation aims to resolve the complexities of quantum physics through a local explanation.

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  • Understanding of Many-Worlds Theory (MWT)
  • Familiarity with quantum mechanics concepts such as superposition and interference
  • Knowledge of the implications of hidden variables in quantum theories
  • Awareness of the philosophical debates surrounding interpretations of quantum mechanics
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  • Research the implications of Many-Worlds Interpretation (MWI) on quantum entanglement
  • Explore the role of hidden variables in quantum mechanics and their critiques
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Quantum physicists, philosophers of science, and students of quantum mechanics seeking to understand the implications of Many-Worlds Theory and its relation to hidden variables.

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A while ago I was having an interesting thread here about the possibility of local MWT, MWT as a local explanation of the entanglement experiments. In re-reading this discussion I was wondering whether the proposal of MWT as a local theory means:

a) Hidden variables are necessary but MWT claims to escape the common arguments against hidden variables by assuming multiple worlds.

b) Or MWT claims to explain the results locally even without hidden variables, using only superposition, interference, and multiple worlds as explaining concepts.

c) there are proponents of both ways of thinking.
 
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MWI corresponds most closely to your option (b). The wavefunction being reality is meant to explain all the mysteries of quantum physics.
 

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