CHEM 4502 Lecture Notes - Lecture 27: Slater-Type Orbital, Calculus Of Variations, Light Field
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1st 2 terms on each side cancel multiply by psi_2* and integrate over all space. Atoms are described by time dependent schrodinger eqn (tdse) Start in state 1, turn on perturbation (shine light on a system) @ t = 0 a1 and a2 are coefficients that change when we apply perturbation. Light field: short hand: term 1 + term 2 = term 3 + term 4 term 3 can be simplified term 4: rearrange because the wavefunction is orthogonal we divided by this above term to get next line. Let is small mu_12 = transition dipole each hv term in exponential is photon energy. Probability of a 1--> 2 transition delta nu = very small. Probability of a transition is much larger when. Real world applications of perterbation theory and time dependent schrodinger eqn. Multielectron atoms in ch 7, learned about 2 approximation methods which = useful in situations in which we can"t solve.
