I Is the spin linked to the third quantum number ?

Dinofou
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Hi everyone,

As the title says, I was wondering if the third quantum number affects spin since they are both linked by magnetism. If not, will an excited particle have a different spin than a non-excited one ?

Thanks for your answer and sorry for the possible mistakes, I'm just a young french baguette.
 
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Dinofou said:
the third quantum number

Can you give more details, or a reference, to what particular scenario you are talking about?
 
No particular linkage, at least not if you're using the standard n,l,m,s labels for a bound electron, so that the third quantum number is m.
 
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Yes I was talking about m, should've been more specific sorry. Thx for your answer.
 
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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