EPR paradox and prediction time

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The discussion centers on the EPR paradox and the challenges of predicting measurements in quantum mechanics, particularly regarding entangled particles A and B. When measuring the position of particle A, the predicted position of particle B is not certain, as the wave-function evolves into a spreading Gaussian rather than remaining a delta function. The relativity of simultaneity complicates the notion of simultaneous measurements, suggesting that the order of measurements affects outcomes depending on the reference frame. The conversation also touches on the implications of different interpretations of quantum mechanics, particularly epistemic versus ontic views, and the unresolved nature of wave function collapse. Ultimately, the complexities of quantum entanglement challenge our understanding of measurement and reality within the framework of quantum mechanics.
  • #31
We are talking about different things. If my answer is not helpful, forget it.
 
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  • #32
I think it points to a discrepancy between the description in words and in formulas in the epr paradox.

Epr considers two particles interacting, hence at the same place in the text. Then it describes this state with the wavefunction delta(x1+x2). In the latter the 2 particles are not at the same place so imo there lack a time evolution to describe the system between the pair creation and the measurement.
 

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