6533b7d6fe1ef96bd1267124
RESEARCH PRODUCT
Dispersive interactions between atoms and nonplanar surfaces
Serge ReynaudAstrid LambrechtRiccardo MessinaRiccardo MessinaDiego A. R. DalvitPaulo A. Maia Netosubject
Surface (mathematics)SiliconFOS: Physical sciencesPhysics::Opticschemistry.chemical_element01 natural sciences010305 fluids & plasmassymbols.namesake[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph]0103 physical sciencesAtomPhysics::Atomic and Molecular ClustersPhysics::Atomic Physics010306 general physicsPhysicsQuantum PhysicsCasimir-Polder atom surface corrugation scatteringScatteringFirst orderAtomic and Molecular Physics and OpticsWavelengthAmplitudechemistrysymbolsvan der Waals forceAtomic physicsQuantum Physics (quant-ph)description
We calculate the dispersive force between a ground state atom and a non planar surface. We present explicit results for a corrugated surface, derived from the scattering approach at first order in the corrugation amplitude. A variety of analytical results are derived in different limiting cases, including the van der Waals and Casimir-Polder regimes. We compute numerically the exact first-order dispersive potential for arbitrary separation distances and corrugation wavelengths, for a Rubidium atom on top of a silicon or gold corrugated surface. We discuss in detail the inadequacy of the proximity force approximation, and present a simple but adequate approximation for computing the potential.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-08-27 | Physical Review A |