Has entanglement in quantum physics been experimentally validated?

Click For Summary

Discussion Overview

The discussion centers on the experimental validation of quantum entanglement, exploring various experiments and interpretations related to this phenomenon in quantum mechanics. Participants examine the implications of Bell's theorem, the violation of Bell inequalities, and the role of hidden variable theories, as well as discussing related experimental setups and results.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Mathematical reasoning
  • Experimental/applied

Main Points Raised

  • Some participants assert that entanglement has been experimentally proven through numerous experiments demonstrating perfect correlations and violations of Bell inequalities.
  • Others argue that while Bell's theorem and its violations provide significant evidence, they do not constitute a definitive proof of entanglement, as they only compare predictions of different theories.
  • A participant mentions that the violation of Bell inequalities is just one aspect of testing quantum entanglement, highlighting the importance of breaking the diffraction limit with entangled particles.
  • Concerns are raised about potential loopholes in experiments, particularly regarding the implications of superdeterminism and the completeness of quantum mechanics.
  • Some participants discuss the nature of detectors and the differences in interference patterns between photons and electrons, questioning the reasons behind these differences.
  • There is a discussion about the nature of entangled pairs and how they behave differently from unentangled pairs, regardless of the interpretations of local realism.

Areas of Agreement / Disagreement

Participants express a range of views on the experimental validation of entanglement, with some asserting it has been proven and others questioning the completeness of the evidence. The discussion remains unresolved regarding the implications of various experiments and interpretations.

Contextual Notes

Participants note that the methodologies and interpretations of experiments can vary significantly based on the specific setups and theoretical frameworks employed. The discussion highlights the ongoing debates surrounding the implications of experimental results in quantum mechanics.

  • #31
It has nothing to do with having an "open mind". And open mind is a dangerous thing to have. Flies might fall into it.

The best and most effective use of a forum such as this is if one focuses on a particular, narrow topic, not some broad topic such as wanting to learn quantum mechanics, which one does in a standard college course. You cannot expect to be schooled in something that broad, and in, of all places, a public forum! This is pure laziness!

If you truly want to learn about QM, then open a QM text and learn from it. If you have specific questions, then ask that specific question on here after you've made an honest attempt at understanding it. That is the most effective way of learning anything, if that is what you really want to do.

A broad, open-ended, vague, and often meandering thread like this isn't the way to do it. It is now closed.

Zz.
 

Similar threads

  • · Replies 12 ·
Replies
12
Views
2K
  • · Replies 58 ·
2
Replies
58
Views
5K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 14 ·
Replies
14
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 473 ·
16
Replies
473
Views
32K