The Casimir-Polder and van der Waals interactions between an atom and a flat cavity wall are investigated under the influence of real conditions including the dynamic polarizability of the atom, actual conductivity of the wall material and nonzero temperature of the wall. The cases of different atoms near metal and dielectric walls are considered. It is shown that to obtain accurate results for...

In 1948, Casimir and Polder [1] taking into account a suggestion made by experimentalists evaluated the interaction potential between two eletrical polarizable molecules separated by a distance r including the effects due to the finiteness of the speed of propagation of the electromagnetic interaction, i.e.: of the retardment. Casimir and Polder showed that the retardment causes the interaction...

We apply general formalism to derive Casimir surface force on a dilute dielectric ball without divergencies in intermediate calculations. The correspondence between the Casimir-Polder formula and Casimir surface force is shown. PACS numbers: 03.70.+k, 11.10.Gh, 12.20.-m, 12.20.Ds, 42.50.Lc E-mail: [email protected]

The application of the polder system for flood control in DKI Jakarta has become a must coastal areas, especially with construction sea dikes along coast as solution to anticipate tidal flooding. One thing consider when using is how much pump capacity and reservoir are needed. To answer this quetions, hydrological analysis been carried out several method approaches, starting from determining ra...