Unformatted text preview: τ . Use timedependent perturbation theory (first order) to determine the probability of transition to the 2p level as a function of τ . <2p ez1s> = 0.74ea . E n = e 2 / 2 a n 2 b) (12 pts) How does your answer to a) change if instead of a static field, monochromatic radiation of resonant frequency ϖ is used? c) (16 pts) How does your answer to b) change if instead of monochromatic radiation, a range of frequencies centered on the resonant frequency is used? Do not use the infinite time limit. For part (c), assume a flat distribution function g( ϖ )d ϖ and integrate over all frequencies....
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 Spring '07
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 Physics, mechanics, Fundamental physics concepts, ground state energy, Dr. Herbst

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