scholarly journals Plasmon dispersion in silicon obtained by analytic continuation of the random-phase-approximation dielectric matrix

1991 ◽  
Vol 44 (7) ◽  
pp. 2952-2960 ◽  
Author(s):  
R. Daling ◽  
W. van Haeringen ◽  
B. Farid
Keyword(s):  
Analytic Continuation ◽  
Random Phase Approximation ◽  
Random Phase ◽  
Phase Approximation ◽  
Dielectric Matrix ◽  
Plasmon Dispersion

scholarly journals Особенности распространения плазмонов в графеновом бислое в условиях поперечного электрического поля

2020 ◽  
Vol 62 (1) ◽  
pp. 153
Author(s):  
Е.И. Кухарь ◽  
С.В. Крючков
Keyword(s):  
Dispersion Relation ◽  
Dispersion Curve ◽  
Bias Voltage ◽  
Random Phase Approximation ◽  
Random Phase ◽  
Plasma Waves ◽  
Phase Approximation ◽  
Plasmon Energy ◽  
Graphene Bilayer ◽  
Plasmon Dispersion

Dispersion relation for plasma waves in graphene bilayer has been investigated. Influence of the bias voltage on the dispersion curve for plasmon in bigraphene has been studied within random phase approximation. The possibility of controlling of energy and group velocity for plasmon by changing of bias voltage has been shown. The dependence of plasmon energy on the bias voltage has been predicted to have the nonmonotonous character. Effect of the temperature on the plasmon dispersion has been analyzed.

Interpretation of Preferential Adsorption Using Random Phase Approximation Theory

1995 ◽  
Vol 60 (10) ◽  
pp. 1641-1652 ◽  
Author(s):  
Henri C. Benoît ◽  
Claude Strazielle
Keyword(s):  
Approximation Theory ◽  
Random Phase Approximation ◽  
Virial Coefficient ◽  
Random Phase ◽  
Second Virial Coefficient ◽  
Solvent Mixture ◽  
Gyration Radius ◽  
Thermodynamic Quantities ◽  
Phase Approximation ◽  
Preferential Adsorption

It has been shown that in light scattering experiments with polymers replacement of a solvent by a solvent mixture causes problems due to preferential adsorption of one of the solvents. The present paper extends this theory to be applicable to any angle of observation and any concentration by using the random phase approximation theory proposed by de Gennes. The corresponding formulas provide expressions for molecular weight, gyration radius, and the second virial coefficient, which enables measurements of these quantities provided enough information on molecular and thermodynamic quantities is available.

Neutrino reactions onC12by the quasiparticle random-phase approximation (QRPA)

2010 ◽  
Vol 81 (2) ◽  
Author(s):  
Myung-Ki Cheoun ◽  
Eunja Ha ◽  
Su Youn Lee ◽  
K. S. Kim ◽  
W. Y. So ◽  
...  
Keyword(s):  
Random Phase Approximation ◽  
Random Phase ◽  
Phase Approximation ◽  
Quasiparticle Random Phase Approximation
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