Do nonlocal deterministic QM theories violate the speed of light?

SeventhSigma
Messages
256
Reaction score
0
See topic
 
Physics news on Phys.org
Nonlocality has never seemed non-local to me. Two electrons are in the same state except with opposite spin and when separating and taking a subsequent measurement you find that if one is spin up the other is spin down. How is that a surprise? It is not as if you can change the spin of an electron and cause the entangled electron to change it's spin, so there is no violation.
 
Yes. (This is the answer to the question posed in the title of this thread.)
 
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

Back
Top