Intramolecular dependence of the frequency dependent polarizabilities of Li2(a 3Σ+ u) and Na2(a 3Σ+ u) and van der Waals dispersion coefficients for atom-diatom and diatom-diatom alkali dimers

2003 ◽  
Vol 101 (3) ◽  
pp. 373-380 ◽  
Author(s):  
MICHEL RÉRAT ◽  
BÉATRICE BUSSERY-HONVAULT
Keyword(s):  
Van Der Waals ◽  
Dispersion Coefficients ◽  
Frequency Dependent ◽  
Alkali Dimers

OPTICAL PROPERTIES AND KINETIC ROUGHENING INFLUENCE ON DISPERSIVE CASIMIR AND VAN DER WAALS FORCES

2010 ◽  
Vol 24 (31) ◽  
pp. 6013-6042 ◽  
Author(s):  
G. PALASANTZAS ◽  
V. B. SVETOVOY ◽  
P. J. VAN ZWOL
Keyword(s):  
Surface Roughness ◽  
Optical Properties ◽  
Casimir Force ◽  
Review Paper ◽  
Van Der Waals ◽  
Flat Plates ◽  
Frequency Dependent ◽  
Kinetic Roughening ◽  
Real Material

Casimir and van der Waals dispersive forces between real material surfaces can be strongly influenced by surface roughness and the frequency dependent dielectric functions of the interacting materials. The Lifshitz theory allows calculations of these forces between two flat plates if the frequency dependent dielectric function is known. Even in this case in order to compare different measurements of the Casimir force the accuracy must be higher than the force uncertainty arising as a result of the variation in the measured dielectric functions for a given material. Therefore, when we are dealing with dispersive forces between real materials, precise characterization of the particular interacting samples is critical. For this reason the effects of optical properties and surface roughness on dispersive forces will be first discussed in this review paper. Finally, we will compare research results among various research groups, at relatively large surface separations where roughness plays insignificant role, in order to show the level of consensus that has developed in this field in the recent years.

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