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Hamiltonian Matrix

  1. May 27, 2008 #1
    In the volume III of R Feynman series which is on Quantum Mechanics , please explain to me the eq.8.43 given on page 1529, i know how we got the equation but the 2nd part of 1st equation (H12)C2, what does it mean ?
  2. jcsd
  3. May 27, 2008 #2


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    This equation is simply an application of eq. 8.39 to a 2-state system. C1 and C2 are the components of the wave function along each of the 2 basis states. H12 and H21 are the off-diagonal terms in the Hamiltonian.


    \mathcal{H} \equiv \left(
    H_{11} & H_{12}\\
    H_{21} & H_{22}

    Last edited: May 27, 2008
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