Phys. Rev. A 40, 5559–5567 (1989)Solution of the pair equation using a finite discrete spectrumReceived 19 June 1989; published in the issue dated November 1989 A method for the solution of the pair equation, by summation over a complete and finite basis set, is presented. The basis set is obtained by diagonalization of a discretized Hermitian one-particle Hamiltonian. The number of operations required to solve the radial pair equation is proportional to N3 where N is the number of radial lattice points used. An application to the ground state of helium, evaluating the total energy to an accuracy of a few parts in 108, is presented. The method is equally well applicable to the study of pair correlation in many-electron atoms. © 1989 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.40.5559
DOI:
10.1103/PhysRevA.40.5559
PACS:
31.15.+q, 31.20.Di
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.