Quantum Physics in the Nanoworld by Hans Lüth

Author:Hans Lüth
Language: eng
Format: epub
Publisher: Springer Berlin Heidelberg, Berlin, Heidelberg

(6.101a)

This yields

(6.101b)

an equation, where the unperturbed Hamilton operator appears solely in terms of its eigenvalues E n . Only the time-dependent potential determines the time development of the probability amplitudes a n (t). To answer the question how a particular stationary final state |f〉 is reached, in (6.101b) the projection on this state has to be calculated. We thus multiply this equation from the left with the bra 〈f|exp(iE f t/ħ) and keep in mind 〈f|n〉=δ fn :

(6.102)

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