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Information Contained in G and Gº
The Hartree and HartreeFock Approximations
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added particle analytic functions approximations for G average becomes Born collision approximation boundary condition Chapter chemical potential collision rate collision term Coulomb gas defined density of particles derived describe determine distribution function disturbance dra v(r effect energy equation of motion equilibrium Green’s functions evaluated expansion expectation value expression Fermi Fermi sea fermion fermion system Fourier coefficient Fourier transform free particles Gº p,q Green's Green’s function Hartree approximation Hartree–Fock imaginary integral interaction matrix nonequilibrium number conservation number of particles one-particle Green’s function particle with momentum Phys physical plasma oscillation Poisson bracket pressure quantities quasi-particle random phase approximation response function result right side ſ d1 ſ d2 ſ dp ſ dr ſ dra ſ dt ſar scattering self-energy shielded potential single-particle slowly varying ſº sound propagation temperature theory ticles tion Ueff Ueff(R,T upper half-plane variables velocity write zero sound zero-temperature