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Homework Help: Show operator is diag in second basis

  1. Nov 25, 2008 #1
    1. The problem statement, all variables and given/known data
    Show explicitly using Pauli matrices that the S2 operator is diagonal in the second basis.


    2. Relevant equations
    S2=S[tex]^{2}_{1}[/tex]+S[tex]^{2}_{2}[/tex]+2S[tex]_{1}[/tex]S[tex]_{2}[/tex]

    3. The attempt at a solution[/b]
    In the last term, 1 and 2 are supposed to be subscripts, and the two S's should be shown as a dot product.

    Treat as a 2-particle system; what are they looking for? What does "in the second basis" mean? There is also a chance that the probelm statement is incorrect; in the instructor's superscripts, it's often impossible to distinguish a 2 from a z. Thanks in advance.
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Nov 26, 2008 #2

    gabbagabbahey

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    Homework Helper
    Gold Member

    Is this really the entire problem?
     
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