Dopey Question about Bell's theorem.

NateTG
Science Advisor
Homework Helper
Messages
2,449
Reaction score
7
For context I'm looking at:
http://www.mtnmath.com/whatrh/node80.html

Bell's theorem suggests that a hidden variable λ cannot exist, but, at least the version above makes the assumption that Λ (the set of all posible values of λ ) is a measurable domain s.t.
\int_{\Lambda} f(\lambda)d\lambda

is well-defined.

Is there a version of Bell's theorem that does not rely on the ability to integrate the probability function of λ?
 
Last edited:
Physics news on Phys.org
Found it. Apparently Bell does assume that the hidden variable is in a measurable domain, and Pitowksy produced a model based on unmeasurable sets that avoids the issue.
 


Yes, there are versions of Bell's theorem that do not rely on the ability to integrate the probability function of λ. These versions use different mathematical frameworks, such as operator algebras and category theory, to prove the same results as the original Bell's theorem. These alternative versions also do not require the assumption of a measurable domain for Λ. In fact, these versions often provide a more general and abstract understanding of Bell's theorem and its implications. So while the original version may be easier to understand and apply, it is important to recognize that there are other valid interpretations of Bell's theorem.
 
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
If we release an electron around a positively charged sphere, the initial state of electron is a linear combination of Hydrogen-like states. According to quantum mechanics, evolution of time would not change this initial state because the potential is time independent. However, classically we expect the electron to collide with the sphere. So, it seems that the quantum and classics predict different behaviours!

Similar threads

Replies
220
Views
21K
Replies
28
Views
2K
Replies
16
Views
3K
Replies
333
Views
17K
Replies
47
Views
5K
Replies
874
Views
42K
Back
Top