scholarly journals Ground state of the electron gas by a stochastic method

1980 ◽  
Author(s):  
D.M. Ceperley ◽  
B.J. Alder
Keyword(s):  
Ground State ◽  
Electron Gas ◽  
Stochastic Method

scholarly journals Ground State of the Electron Gas by a Stochastic Method

1980 ◽  
Vol 45 (7) ◽  
pp. 566-569 ◽  
Author(s):  
D. M. Ceperley ◽  
B. J. Alder
Keyword(s):  
Ground State ◽  
Electron Gas ◽  
Stochastic Method

A Parametric Approach to the Ground-State Energy of an Electron Gas

1968 ◽  
Vol 175 (1) ◽  
pp. 224-228 ◽  
Author(s):  
M. S. Becker ◽  
A. A. Broyles ◽  
Tucson Dunn
Keyword(s):  
Ground State Energy ◽  
Ground State ◽  
State Energy ◽  
Electron Gas ◽  
Parametric Approach

Electronic Excess Energy in Modulated Positive-Background Model

1982 ◽  
Vol 21 ◽  
Author(s):  
H. Yahauchi
Keyword(s):  
Ground State Energy ◽  
Ground State ◽  
State Energy ◽  
Electron Gas ◽  
Alloy System ◽  
Excess Energy ◽  
Absolute Zero ◽  
Background Model ◽  
Zero Temperature ◽  
Modulation Wavelength

ABSTRACTElectronic excess energy of a composition-modulated alloy system at absolute zero temperature is obtained using Hohenberg and Kohn's formula (for the ground-state energy of an inhomogeneous electron gas) in a modulated positive-background model. Dependence of the electronic excess energy on the modulation wavelength is studied. Two leading terms in the excess energy are examined to elucidate the limitation of this model.

Wave-number dependence of the static screening function of an interacting electron gas. II. Higher-order exchange and correlation effects

1970 ◽  
Vol 48 (2) ◽  
pp. 167-181 ◽  
Author(s):  
D. J. W. Geldart ◽  
Roger Taylor
Keyword(s):  
Density Dependence ◽  
Ground State ◽  
Electron Gas ◽  
Perturbation Expansion ◽  
Interpolation Formula ◽  
Higher Order ◽  
Wave Number ◽  
Correlation Effects ◽  
Many Body ◽  
Static Screening

An interpolation formula is suggested for the wave-number and density dependence of the static screening function for an interacting electron gas in its ground state. The approximate screening function simulates a number of properties of the exact screening function which have been established by analysis of its many-body perturbation expansion. The accuracy of the interpolation formula is discussed and is considered to be adequate for practical calculations in the range of intermediate metallic densities.

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