Do nonlocal deterministic QM theories violate the speed of light?

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SUMMARY

The discussion centers on the implications of nonlocal deterministic quantum mechanics (QM) theories regarding the speed of light. Participants argue that entangled electrons, when measured, exhibit opposite spins without any influence from one another, thus not violating the principles of relativity. The consensus is that the phenomenon of entanglement does not allow for faster-than-light communication or influence, affirming that no violation occurs. This conclusion reinforces the understanding of quantum entanglement and its alignment with established physical laws.

PREREQUISITES
  • Understanding of quantum mechanics principles, specifically entanglement.
  • Familiarity with the concept of nonlocality in physics.
  • Knowledge of the implications of the speed of light as a cosmic speed limit.
  • Basic grasp of measurement theory in quantum systems.
NEXT STEPS
  • Research the implications of quantum entanglement on communication technologies.
  • Study the principles of nonlocality in quantum mechanics.
  • Explore the relationship between quantum mechanics and the theory of relativity.
  • Investigate deterministic interpretations of quantum mechanics, such as pilot-wave theory.
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Physicists, quantum mechanics students, and anyone interested in the foundational principles of quantum theory and its implications for the speed of light and nonlocality.

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Nonlocality has never seemed non-local to me. Two electrons are in the same state except with opposite spin and when separating and taking a subsequent measurement you find that if one is spin up the other is spin down. How is that a surprise? It is not as if you can change the spin of an electron and cause the entangled electron to change it's spin, so there is no violation.
 
Yes. (This is the answer to the question posed in the title of this thread.)
 

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