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Published April 1984 | Version Published
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Schwinger variational principle applied to long-range potentials

Creators

  • 1. ROR icon California Institute of Technology

Abstract

We discuss an adaptation of the Schwinger variational principle which is particularly suitable for dealing with long-range potentials. The method treats the direct interaction potential exactly by numerical integration and assumes a separable representation of the Schwinger type for the exchange potential. The method should be very effective for obtaining the electronic continuum solutions of strongly polar molecular ions. The related photoionization cross sections can be shown to be variationally stable.

Additional Information

©1984 The American Physical Society. Received 2 September 1983. This material is based upon work supported by the National Science Foundation under Grant No. CHE-81-28166. One of us (M.E.S.) acknowledges support of a National Science Foundation (NSF) fellowship. The research reported in this paper made use of the Dreyfus-NSF Theoretical Chemical Computer which was funded through grants from the Camille and Henry Dreyfus Foundation, the National Science Foundation (Grant No. CHE-78-20235), and the Sloan Fund of the California Institute of Technology.

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Additional details

Identifiers

Eprint ID
11682
Resolver ID
CaltechAUTHORS:SMIpra84

Funding

National Science Foundation
CHE-81-28166
Camille and Henry Dreyfus Foundation
National Science Foundation
CHE-78-20235
Sloan Fund, Caltech

Dates

Created
2008-09-18
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Updated
2021-11-08
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