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Homework Help: Spin-orbit coupling

  1. Jan 6, 2006 #1
    why does spin-orbit coupling have a positive and negative sign?
  2. jcsd
  3. Jan 6, 2006 #2
    What exactly are you referring to?
  4. Jan 7, 2006 #3
    the spin orbit coupling in atoms that have more than one electron in modern physics...
  5. Jan 7, 2006 #4
    That part was obvious but were you referring to a specific formula like the SO-hamiltonian or something?
  6. Jan 10, 2006 #5
    no.... sorry!!! my mistake!!! it's why does the z component of the spin angular momentum have a positive and negative sign?
  7. Jan 10, 2006 #6


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    Homework Helper

    You mean the eigenvalues, right...? Well, basically, group theory explains why...

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