I Is the change in energy due to light-shift the same in all levels?

ErezAgh
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Reminder? In a three level system, with energies E0,E1,E2: would light-shift change the values of E1 and E2 by the same \Delta E? Or would \Delta E1 be different from \Delta E2?
Remind me please? In a three level system, with discrete energies E0,E1,E2: would light-shift (Stark shift), applied due to an external electric field, change the values of E1 and E2 by the same \Delta E? Or would \Delta E1 be different from \Delta E2?
 
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Hello. Electron cloud has different shape according to energy and angular momentum of electrons, e.g. 1s, 2s,2p,3d. So each level has different energy shift in applying electric field.
 
anuttarasammyak said:
Hello. Electron cloud has different shape according to energy and angular momentum of electrons, e.g. 1s, 2s,2p,3d. So each level has different energy shift in applying electric field.
Thanks, will the shift be in the same direction, or can it be in different directions?
 
Energy levels of atom electrons change by applying electric field. Stark effect is observation of energy gap between these energy levels so the sign of shift depends on both the changes of initial state and final state.
 
anuttarasammyak said:
Energy levels of atom electrons change by applying electric field. Stark effect is observation of energy gap between these energy levels so the sign of shift depends on both the changes of initial state and final state.
Thank you.
 
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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