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Some new simplifications for general form of the orbit-orbit interaction operator

G. Gaigalas
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Abstract

The general tensorial form of the orbit-orbit interaction operator in the formalism of second quantization is presented. Such an expression is needed to calculate both diagonal and off-diagonal matrix elements with respect to configurations, in a uniform way. Some special cases are shown for which the orbit-orbit interaction operator reduces to simple form. The importance of different contributions to the Breit-Pauli hamiltonian is investigated in ground states and ionization potentials for Li isoelectronic sequency in the systematic way.

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G. Gaigalas. 2004-05-14. Some new simplifications for general form of the orbit-orbit interaction operator. https://arxiv.org/abs/physics/0405070

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