Ring Diagram Contribution to Electron Correlations

  • A. Isihara

Abstract

The ring diagram contribution to the correlation energy of an electron gas in 3-D and in 2-D is treated in an accurate and systematic way by applying the Montroll and Ward formula for the grand partition function. Difficulties in the traditional rg series are pointed out and a new direct method of evaluation is discussed. The ring diagram formula can be derived in different ways without using diagrams.

Keywords

Helium Librium 

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Copyright information

© Plenum Press, New York 1977

Authors and Affiliations

  • A. Isihara
    • 1
  1. 1.Statistical Physics Laboratory, Department of PhysicsState University of New York at BuffaloBuffaloUSA

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