EPR paradox and prediction time

Click For Summary
SUMMARY

The discussion centers on the EPR paradox and the implications of measuring entangled particles A and B, particularly regarding their position and momentum. It establishes that measuring the position of particle A does not allow for a definitive prediction of particle B's position due to the wave-function's evolution into a Gaussian spread. The conversation highlights the conflict between quantum mechanics (QM) and relativity, emphasizing that simultaneous measurements depend on the reference frame, which complicates predictions. Additionally, it addresses the uncertainty principle and the challenges posed by different interpretations of QM, particularly epistemic versus ontic views.

PREREQUISITES
  • Understanding of quantum mechanics principles, particularly entanglement.
  • Familiarity with the EPR paradox and its implications in quantum theory.
  • Knowledge of the uncertainty principle and its relevance to particle measurements.
  • Basic grasp of relativity and reference frames in physics.
NEXT STEPS
  • Research the implications of the EPR paradox on quantum entanglement and measurement theory.
  • Study the differences between epistemic and ontic interpretations of quantum mechanics.
  • Explore the role of the uncertainty principle in quantum measurements and its effects on predictions.
  • Investigate the experimental tests of non-local quantum correlations and their significance.
USEFUL FOR

Physicists, quantum mechanics researchers, and students interested in the foundational questions of quantum theory and its intersection with relativity.

  • #31
We are talking about different things. If my answer is not helpful, forget it.
 
Physics news on Phys.org
  • #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.
 

Similar threads

High School How does the EPR paradox work?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad What is the paradox in the EPR paradox?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Could an experiment confirm the EPR paradox's implications on uncertainty?
  • · Replies 20 ·
Replies
20
Views
2K
High School Double Slit Paradox: A Wave-Particle Mystery
  • · Replies 13 ·
Replies
13
Views
2K
Graduate Bohr's solution to the EPR paradox
  • · Replies 100 ·
4
Replies
100
Views
11K
Graduate EPR paradox and time of collapse
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Imagining the EPR paradox/quantum entanglement
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Does the wave function spread more quickly after it is observed?
  • · Replies 32 ·
2
Replies
32
Views
4K
High School Why do photon polarization experiments show similar outcomes in different situations?
  • · Replies 11 ·
Replies
11
Views
2K
Undergrad Explanation of the EPR paradox
  • · Replies 18 ·
Replies
18
Views
3K