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Homework Help: Larmor precession pi/2 out of phase

  1. May 6, 2012 #1
    1. The problem statement, all variables and given/known data
    I was going over the solution where it says [itex]\s_x, s_y[/itex] are out of phase by pi/2.
    They first wrote equation of motion for [itex]\s_x, s_y[/itex] and then did something to the matrix and now the have equation of motion for [itex]\s_+, s_-[/itex]
    They rewrite [itex]\s_x, s_y[/itex] in terms of [itex]\s_+, s_-[/itex] to see that [itex]\s_x, s_y[/itex] are out of phase bi pi/2,
    I dont get what they did to the matrix [0,-w;-w,0]

    2. Relevant equations

    3. The attempt at a solution
    I was just trying to understand the solution. when i initially made an attempt, i only noticed [itex]\s_x, s_y[/itex] are precessing .
    I have attached the solution

    Attached Files:

    Last edited: May 6, 2012
  2. jcsd
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