A Direct Calculation of First-Order Wave Function of Helium |
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Authors: | Boniface Otieno Ndinya and Joseph Akeyo Omolo |
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Institution: | Department of Physics and Materials Science, Maseno University, Private Bag, Maseno Kenya |
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Abstract: | We develop a simple analytic calculation for the first order wave function of helium in a model in which nuclear charge screening is caused by repulsive coulomb interaction. The perturbation term, first-order correlation energy, and first-order wave function are divided into two components, one componentassociated with the repulsive coulomb interaction and the other proportional to magnetic shielding. The resulting first-order wave functions are applied to calculate second-order energies within the model. We find that the second-order energies are independent of the nuclear charge screening constant in the unperturbed Hamiltonian with a central coulomb potential. |
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Keywords: | nuclear charge screening first-order wave function and second-order energy |
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