Deconstructing the 2022 Physics Nobel Prize: Quantum Entanglement and Bell Inequalities

Talk held by Michael Eichenberger on November 29th, 2022 at ETH Zürich Undergraduate Colloquium for Mathematics and Physics.
Abstract. What was this year’s physics Nobel prize about? This talk aims at giving an intuitive overview of the key concepts and experiments included in the 2022 laureates work, focusing on quantum entanglement as a fundamental differentiator between classical and quantum systems.

[tukkek]

If someone stumbles upon this, can you explain why "breaking" the statistical assumption (less than 2) eliminates the possibility of local reality? I can follow the logic from A to B but it isn't clear why if you have B (assumption breaks), then A cannot be true anymore.

I mean yes, it makes sense that if you have the equation based on your assumptions and Bell's Inequality then if it breaks, you have violated it. What isn't clear to me is the "why" of it that the math is representing.


I have seen other videos with the predicted graph curves for local-reality holding up and not and maybe that explains it better but I'd like to understand from the logic in the video since it's the best one I've found yet.

[BenjaminGatti]

Quantum mechanics is a mathematical theory, not a physical theory. Learn the difference.