Self-consistent random-phase approximation for a two-dimensional electron gas: Kadanoff-Baym-Keldysh approach
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چکیده
We have developed a method of finding equilibrium Green’s functions for an electron gas with Coulomb interaction within the Kadanoff-Baym-Keldysh approach. This method is based on iterative numerical computation of the retarded self-energy in the self-consistent random-phase approximation. For a two-dimensional electron gas, we have calculated numerically various one-electron properties and the ground-state energy at zero temperature. This method allows one, in principle, to describe electron systems at predetermined finite temperatures. Our solutions may serve as self-consistent initial conditions for quantum kinetics problems in quantum wells.
منابع مشابه
Self-consistent random-phase approximation for a two-dimensional electron gas at finite temperatures
For a two-dimensional electron gas with Coulomb interaction, we have applied the Kadanoff-Baym-Keldysh approach to calculate numerically equilibrium Green’s functions at finite temperatures. The method used is based on iterative numerical computation of the retarded self-energy in the self-consistent random-phase approximation approximation. We have computed electron distribution, quasiparticle...
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تاریخ انتشار 2000