Van der Waals dispersion energy between atoms and nanoparticles

Frontiers in Theoretical and Applied Physics/UAE 2017

Boustimi, M.^1 ; Loulou, M.^1 ; Natto, S.^1 ; Belafhal, A.^2 ; Baudon, J.^3

Umm Al-Qura University, Physics Dept, PO Box 715, Makkah

21955, Saudi Arabia^1

Laboratory of Nuclear, Atomic and Molecular Physics, Department of Physics, Chouaïb Doukkali University, P. B 20, El Jadida

24000, Morocco^2

Laboratoire de Physique des Lasers, CNRS-UMR 7538, Université Paris 13, 99 av. J.B. Clément, Villetaneuse, France^3

关键词: Dispersion energies;    General expression;    Metallic nanoshells;    Surface interactions;    Susceptibility tensors;    Van der waals;    Van Der Waals interactions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/869/1/012057/pdf
DOI  :  10.1088/1742-6596/869/1/012057

来源: IOP

【 摘 要 】

In this work, we focus on the atom-surface interaction where the geometry of the surface is highly symmetric (i.e. sphere, cylinder and plane) and the atom is in ground state. We first present the main features of our model, based on the susceptibility tensors of the two partners in interaction, to determine a general expression of the dispersive energy of van der Waals interaction. Some results are given as applications of this model which addresses recent nanophysical problems, for example, when atoms are in the vicinity of metallic nanoshells, nanospheres or nanowires.