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Homework Help: X-component of angular momentum, Lx, acting on |n,l,m>

  1. Feb 23, 2010 #1
    1. The problem statement, all variables and given/known data

    I need to know what the eigen value of Lx would be if, Lx|n,l,m>.

    2. Relevant equations

    L+-=Lx+-iLy
    L2=Lx2+Ly2+Lz2
    Lz|n,l,m>=mhbar|n,l,m>
    L|n,l,m>=l(l+1)hbar2|n,l,m>


    3. The attempt at a solution

    I have a mixed state I need to apply Lx tp, but I'm not sure how! If anyone known how to put this in terms of L, Lz, or L+-, I would really appreciate the help!
     
  2. jcsd
  3. Feb 23, 2010 #2

    kuruman

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    Express Lx in terms of L+ and L -, then operate on |n,l,m> and see what you get.
     
    Last edited: Feb 23, 2010
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