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Homework Help: Atomic physics

  1. Jan 17, 2012 #1
    1. The problem statement, all variables and given/known data
    Consider a system with states |i> (with energy Ei) and |f> with energy eF) AND A PPERTURBATION OF THE FORM w(t)=wcosωt

    i) WHAT IS THE PROBABILITY P(t) FOR A TRANSITION BETWEEN |i> AND |f> ?
    ii)FOR WHICH VALUE OF ω IS THE PROBABILITY MAXIMAL ?GIVE THE PROBABILITY IN THIS CASE.
    iii)WHAT IS THE WIDTH OF P(t) AT THE MAXIMUM?(VIEWED AS A FUNCTION OF ω).EXPLAIN HOW IT IS RELATED TO THE TIME-ENERGY UNCERTAINTY RELATION.

    2. Relevant equations

    i have searched in chris foot and in some other textbooks but i found no clues .

    3. The attempt at a solution
    in the attachement igive what chris foot gives about this subject. do you think Ω is the frequency i need on ii) ?
     

    Attached Files:

  2. jcsd
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