Lennard-jones coefficient C3 and long-range retarded potential for H,alkali atoms-perfectly conducting surface interaction

Abstract EN

The present work includes the theoretical study of the Lennard–Jones coefficient C3 for single valence electron atomic systems (H and Alkali atoms, in ground and first excited energy S-state) which are interacting with a perfectly conducting surface (i.e.

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Our calculations depend upon the dynamic dipole polarizability formula α2(iw), whish is given directly in terms of an effective transition frequencies wi and effective oscillator strengths fi .

We calculated the retardation coefficient ƒ3 (R) for these interactions to knowledge the retardation effect at a large separation distances R.

Finally, we study the behavior of the long– range attractive potential VAtM (R) for the nteracting systems over a wide range of separation distances R.

Our results are compared with those reported by other researchers concerning this study in the ground state interactions.