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

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SUMMARY

The discussion centers on the Stark effect in a three-level atomic system with discrete energy levels E0, E1, and E2. It is established that the light-shift, or Stark shift, caused by an external electric field does not uniformly affect all energy levels; rather, the energy shifts (\Delta E) for E1 and E2 will differ due to the distinct electron cloud shapes associated with each level. The direction of the energy shift can also vary, influenced by the initial and final states of the electrons involved.

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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.
 
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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.
 

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