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Calculation of polarization coefficient with perturbation.

  1. Mar 7, 2012 #1
    If we have a charged particle, The dipole moment is defined as P=q<r>. Consider a charged particle in the ground state of a !D square well.

    V(x)= {0, IxI < L (otherwise ∞)

    Clearly P is 0 in the ground state. Another quantity we define is polarizability , which is defşned as P=E where Eis the electric field applied. Calculate for the ground state the 1D well. [ when E is applied we get a perturbation V= -qEr, find the charge in the wavefunction to 1st order in E and calculate P ]

    Please if you have some comments they would be wellcomed.

    Thank You
  2. jcsd
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