Bell Model & Calcium Configurational Electrons: Explained?

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After a lookback at the current flap on EPR's validity I found that the Aspect Quantum Chemistry seemed to be invalid in that the modeling involved Calcium's configurational electrons. The model assumes that there are a pair of valence (4s) electrons and a pair of 4p electrons?? There are only 3p electrons - there are six of them all of equal momentum and that are more stable than the 3s orbital of calcium. There may be an explanation of how that could happen - does anyone know? Cheers, Jim
 
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NEOclassic said:
After a lookback at the current flap on EPR's validity I found that the Aspect Quantum Chemistry seemed to be invalid in that the modeling involved Calcium's configurational electrons. The model assumes that there are a pair of valence (4s) electrons and a pair of 4p electrons?? There are only 3p electrons - there are six of them all of equal momentum and that are more stable than the 3s orbital of calcium. There may be an explanation of how that could happen - does anyone know? Cheers, Jim

Besides my disagreeing with your assessment, what is your point? How do Aspect's correlations occur if the photons are not entangled? In other words, it is not really so critical that we know the exact mechanism of entangled pair production - although of course it is desirable - if we can witness the entanglement.

The exact mechanism of Parametric Down Conversion (PDC) - which is now used for many Bell tests - is not known either.
 


The Bell Model and Calcium Configurational Electrons are two concepts that are often discussed in the field of quantum chemistry. The Bell Model, named after physicist John Stewart Bell, is a theoretical framework that explains the phenomenon of quantum entanglement. It proposes that particles can become entangled, or connected in such a way that the state of one particle can affect the state of another, even if they are separated by large distances. This model has been a subject of debate and controversy in the scientific community, particularly in relation to its validity and implications for the understanding of quantum mechanics.

On the other hand, Calcium Configurational Electrons refer to the arrangement of electrons in the outermost energy level of a calcium atom. The model assumes that there are two pairs of electrons in the 4s and 4p orbitals, which are the outermost energy levels of calcium. However, the content mentions that there are only three 4p electrons in a calcium atom, instead of four as assumed by the model. This discrepancy raises questions about the validity of the model and whether there could be an explanation for this difference.

One possible explanation for this discrepancy could be the concept of electron configuration. According to the Aufbau principle, electrons fill orbitals from the lowest energy level to the highest. This means that the 4s orbital, which has a lower energy than the 3p orbital, may be filled before the 3p orbital. Therefore, in some cases, the 4s orbital may have more electrons than the 3p orbital, resulting in a different number of electrons in the outermost energy level.

In conclusion, the Bell Model and Calcium Configurational Electrons are two important concepts in the field of quantum chemistry. While the Bell Model has been a subject of debate, the discrepancy in the number of electrons in the outermost energy level of calcium may have a possible explanation in the concept of electron configuration. Further research and study are needed to fully understand and explain this phenomenon.
 
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!
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