Resolutions of the Coulomb operator.

نویسندگان

  • Sergey A Varganov
  • Andrew T B Gilbert
  • Evelyne Deplazes
  • Peter M W Gill
چکیده

We discuss a generalization of the resolution of the identity by considering one-body resolutions of two-body operators, with particular emphasis on the Coulomb operator. We introduce a set of functions that are orthonormal with respect to 1r(12) and propose that the resulting "resolution of the Coulomb operator," r(12) (-1)=mid R:phi(i)phi(i)mid R:, may be useful for the treatment of large systems due to the separation of two-body interactions. We validate our approach by using it to compute the Coulomb energy of large systems of point charges.

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عنوان ژورنال:
  • The Journal of chemical physics

دوره 128 20  شماره 

صفحات  -

تاریخ انتشار 2008