Quantization of Orbits: Explained

aymer
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hi there

we know that electrons around the nucleus in an atom can only exist in certain discrete energy levels (orbits) and that they can jump from one energy state to a higher one or a lower one. where is the electron when it is jumping from a higher stste to a lower state if it cannot exist anywhere in between? :confused:

thanx
 
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These states are not states in space and time, they are discrete states in energy space.

When going from the e.g. ground state to the 1st excited state, we describe this transition by a pertrurbation, i.e the state the electron is in will be a linear combination of these two states.

The thing must understand is quantum formalism (of the Copenhagen interpretation). One of these steps is that it is meaningless to ask in what state the electron was prior to measurement. Also, superposition of states etc are crucial to understand, you have not specified what your current status in quantum physics learning you are at. Have you just finished your first class at collage in quantum mechanics or are you just curious?
 
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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