Nonlinear polarizabilities of atoms from their ground-state densities

1998 ◽  
Vol 1 (3) ◽  
pp. 265-269 ◽  
Author(s):  
A. Banerjee ◽  
M.K. Harbola
Keyword(s):  
Ground State ◽  
State Densities

scholarly journals Ground-state densities of repulsive two-component Fermi gases

2016 ◽  
Vol 93 (2) ◽  
Author(s):  
Martin-Isbjörn Trappe ◽  
Piotr Grochowski ◽  
Mirosław Brewczyk ◽  
Kazimierz Rzążewski
Keyword(s):  
Ground State ◽  
Fermi Gases ◽  
Two Component ◽  
State Densities

Relativistic analysis of nuclear ground state densities at 135 to 200 MeV

Pramana ◽  
2005 ◽  
Vol 65 (6) ◽  
pp. 1027-1040
Author(s):  
M. A. Suhail ◽  
N. Neelofer ◽  
Z. A. Khan
Keyword(s):  
Ground State ◽  
Nuclear Ground State ◽  
State Densities ◽  
Relativistic Analysis

scholarly journals London dispersion forces without density distortion: a path to first principles inclusion in density functional theory

2020 ◽  
Vol 224 ◽  
pp. 145-165
Author(s):  
Derk Pieter Kooi ◽  
Paola Gori-Giorgi
Keyword(s):  
Ground State ◽  
First Principles ◽  
Density Functional ◽  
Dispersion Forces ◽  
Density Functionals ◽  
Functional Theory ◽  
Exchange Correlation ◽  
State Densities ◽  
London Dispersion ◽  
London Dispersion Forces

We analyse a path to construct density functionals for the dispersion interaction energy from an expression in terms of the ground state densities and exchange–correlation holes of the isolated fragments.

scholarly journals Electroweak probes of ground state densities

2019 ◽  
Vol 100 (5) ◽  
Author(s):  
Junjie Yang ◽  
Jesse A. Hernandez ◽  
J. Piekarewicz
Keyword(s):  
Ground State ◽  
State Densities

Mapping between local potentials and ground state densities

1981 ◽  
Vol 19 (2) ◽  
pp. 293-300 ◽  
Author(s):  
J. Katriel ◽  
C. J. Appellof ◽  
E. R. Davidson
Keyword(s):  
Ground State ◽  
Local Potentials ◽  
State Densities

scholarly journals SCREENING OF THE PHOTON FIELD IN SURFACE PHOTOEMISSION FROM SIMPLE METALS

2000 ◽  
Vol 07 (03) ◽  
pp. 243-255
Author(s):  
S. NATSCHLÄGER ◽  
J. ALBERICH ◽  
N. BARBERÁN ◽  
J. BAUSELLS ◽  
R. RUPPIN ◽  
...  
Keyword(s):  
Model Calculation ◽  
Ground State ◽  
Wave Functions ◽  
Main Peak ◽  
Photon Field ◽  
Direct Excitation ◽  
Step Model ◽  
State Potential ◽  
Electronic Wave Functions ◽  
State Densities

A previous two-step hydrodynamic model calculation of angle-resolved photoemission has been improved by modeling the surface with a soft analytic function. The same ground state potential is used to screen the photon field and to calculate the electronic wave functions. The implemented code can be used for arbitrary ground state densities along the perpendicular direction. Mathematical and physical aspects of the model are discussed extensively. The behavior of the main peak of the spectrum in response to the variation of some parameters leads us to the conclusion that the peak cannot be interpreted as the direct excitation of multipole modes. This conclusion was suggested in the previous two-step model calculation.

On the Determination of Electron Temperature in Diffusion-Dominated Non-L.T.E. Plasmas

1973 ◽  
Vol 28 (8) ◽  
pp. 1289-1293 ◽  
Author(s):  
H. W. Drawin ◽  
F. Emard
Keyword(s):  
Excited States ◽  
Ground State ◽  
Atomic Hydrogen ◽  
Actual Number ◽  
Number Density ◽  
Population Densities ◽  
Characteristic Quantity ◽  
State Densities ◽  
And Diffusion

Population densities of atomic hydrogen levels have been calculated for homogeneous stationary and diffusion-dominated stationary plasmas. The results show strong overpopulation of the lower lying excited states when the actual number density of ground state atoms is larger than the density obtained for the homogeneous stationary state. At low electron and high ground state densities the so-called Boltzmann slope is not further a characteristic quantity for the determination of electron temperatures, since the slope constant changes with quantum number. - The partial L.T.E. condition for diffusion-dominated plasmas is reexamined.

Kinetic and electron-electron energies for convex sums of ground state densities with degeneracies and fractional electron number

2014 ◽  
Vol 140 (18) ◽  
pp. 18A538 ◽  
Author(s):  
Mel Levy ◽  
James S. M. Anderson ◽  
Farnaz Heidar Zadeh ◽  
Paul W. Ayers
Keyword(s):  
Ground State ◽  
Electron Number ◽  
State Densities
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