Physics – Atomic Physics
Scientific paper
2005-04-06
Phys. Rev. A 72, 053405 (2005)
Physics
Atomic Physics
minor changes, published version
Scientific paper
10.1103/PhysRevA.72.053405
Mesoscopic interference effects in multiple scattering of photons depend crucially on the internal structure of the scatterers. In the present article, we develop the analytical theory of multiple photon scattering by cold atoms with arbitrary internal hyperfine multiplets. For a specific application, we calculate the enhancement factor of elastic coherent backscattering as a function of detuning from an entire hyperfine multiplet of neighboring resonances that cannot be considered isolated. Our theory permits to understand why atoms behave differently from classical Rayleigh point-dipole scatterers, and how the classical description is recovered for larger but still microscopic objects like molecules or clusters.
Delande Dominique
Kaiser Robin
Miniatura Christian
Mueller Cord A.
Wilkowski David
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