Does the MWI Affect Results in EPR Type Experiments Across Vast Distances?

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SUMMARY

The discussion centers on the implications of the Many-Worlds Interpretation (MWI) in the context of EPR (Einstein-Podolsky-Rosen) experiments conducted over vast distances, specifically involving entangled photons. Participants Bob and Alice, separated by 1000 light years, conduct measurements without immediate knowledge of their results violating Bell's inequalities. The conversation explores whether the causal connection established when they compare results affects the outcomes in the MWI framework, particularly regarding the results stored in a vault and communicated to others like Joe and Tonya.

PREREQUISITES
  • Understanding of EPR experiments and entanglement
  • Familiarity with Bell's inequalities
  • Knowledge of the Many-Worlds Interpretation of quantum mechanics
  • Basic concepts of quantum measurement and causality
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  • Research the implications of the Many-Worlds Interpretation in quantum mechanics
  • Study Bell's theorem and its significance in quantum entanglement
  • Explore the concept of quantum causality and its effects on measurement outcomes
  • Investigate the role of information transfer in quantum experiments across vast distances
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Quantum physicists, researchers in quantum mechanics, and anyone interested in the philosophical implications of quantum entanglement and the Many-Worlds Interpretation.

nrqed
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Hopefully, this caught the attention of VanEsch.. :biggrin:


Let's say Bob and Alice do an EPR type of experiment. A gazillion entangled pair of photons is sent to Bob and Alice who are 1000 light years apart. They measure the spin of the photons. They do not know yet that this violates Bell's inequalities because they haven't comapred notes yet. Fine.

Now Bob writes down his gazillion results on a piece of paper. he places that in a vault. Then he e-mails to Joe (who is stationed in Andromeda's galaxy) the results. And he Faxes the results to Tonya, who is on the other side of the Milky way (by the time these guys receive the results, Bob and Alice will be connected causally).

Then he goes to visit Alice and compares notes.

In the MWI interpertration, what happens? What happens when Bob and Alice compares notes (to them as well as the results in the vault, in Tonya and Joe's mind. etc). Does something special happens when Bob and Alice have waited long enough to be connected causally (even before they meet in person) or only when they meet and compare notes?

Just curious...


Pat
 

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