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

[ErezAgh]

TL;DR

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?

 

[anuttarasammyak]

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.

 

[ErezAgh]

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?

 

[anuttarasammyak]

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.

 

[ErezAgh]

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.