THE GREEN'S FUNCTION METHOD AND SUPERCONDUCTIVITY OF SYSTEMS OF FERMIONS

Abstract

The method of Green's functions in the theory of many fermion systems has been recently developed by Gorkov and Migdal for the case of superconducting systems. Some further applications of their formalism are given for zero- and for finite temperatures. The pair distribution function of a superconducting system of fermions is calculated by this method. The perturbation theory for impurities in superconductors described by one-particle operators is further discussed. The problem of residual two-body forces in a superconducting system is discussed. A reaction matrix-type treatment of such forces corresponding to a ladder approximationperturbation theory is indicated. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1960
Accession Number
AD0255778

Entities

People

  • Jerzy Sawicki

Organizations

  • University of California, Berkeley

Tags

DTIC Thesaurus Topics

  • Distribution Functions
  • Impurities
  • Mathematics
  • Particles
  • Perturbation Theory
  • Perturbations
  • Residuals
  • Superconductivity
  • Superconductors

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Plasma Physics / Magnetohydrodynamics
  • Superconducting Magnet Technology