2007/03/20 by T. N. C. Mendes, C. Farina · 1 citation
Physics and Astronomy · #Atom (system on chip) #Atomic physics #Casimir effect #Classical mechanics #Condensed matter physics #Dipole #Formalism (music) #London dispersion force #Master equation #Mechanical and Optical Resonators #Molecule #Noncommutative and Quantum Gravity Theories #Physics #Quantum #Quantum Electrodynamics and Casimir Effect #Quantum mechanics #Saturation (graph theory) #Theorem of corresponding states #Van der Waals equation #Van der Waals radius #Van der Waals surface #quant-ph #van der Waals force
paper · pdf · doi:10.1088/1751-8113/40/26/016
19 pages and 3 figures
arxiv created 2007/03/20 · openalex publication_date 2007/06/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Using the general expressions for level shifts obtained from the master equation for a small system interacting with a large one considered as a reservoir, we calculate the dispersive potentials between an atom and a wall in the dipole approximation. We analyze in detail the particular case of a two-level atom in the presence of a perfectly conducting wall. We study the van der Waals as well as the resonant interactions. All distance regimes as well as the high and low temperature regimes are considered. We show that the Casimir-Polder interaction can not be considered as a direct result of the vacuum fluctuations only. Concerning the interaction between the atom and the wall at high temperature, which show that a saturation of the potential for all distances occurs. This saturated potential coincides exactly with that obtained in the London-van der Waals limit. 1