منابع مشابه
Uniform electron gas at finite temperatures
We calculate the free energy of the quantum uniform electron gas for temperatures from near 0 to 100 times the Fermi energy, approaching the classical limit. An extension of the Vashista-Singwi theory to finite temperatures and a self-consistent compressibility sum rule is presented. Comparisons are made to other local-field correction methods, as well as recent quantum Monte Carlo simulation a...
متن کاملSelf-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...
متن کاملFermionic path-integral Monte Carlo results for the uniform electron gas at finite temperature.
The uniform electron gas (UEG) at finite temperature has recently attracted substantial interest due to the experimental progress in the field of warm dense matter. To explain the experimental data, accurate theoretical models for high-density plasmas are needed that depend crucially on the quality of the thermodynamic properties of the quantum degenerate nonideal electrons and of the treatment...
متن کاملPermutation blocking path integral Monte Carlo approach to the uniform electron gas at finite temperature.
The uniform electron gas (UEG) at finite temperature is of high current interest due to its key relevance for many applications including dense plasmas and laser excited solids. In particular, density functional theory heavily relies on accurate thermodynamic data for the UEG. Until recently, the only existing first-principle results had been obtained for N = 33 electrons with restricted path i...
متن کاملAtoms at finite temperatures
These are working notes written as a first step in understanding atomic potentials and atomic structure in finite-temperature systems. 1 Thomas-Fermi Theory As a first step, we consider the Thomas-Fermi theory at finite temperatures. This is my version of the discussion of temperature-dependent Thomas-Fermi theory given in the seminal work of Feynman, Metropolis, and Teller [1]. Later, we will ...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2013
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.88.115123