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Rayleigh scattering and atomic dynamics in dissipative optical lattices
F R Carminati1, L Sanchez-Palencia, M Schiavoni
1Laboratoire Kastler Brossel, Département de Physique de l'Ecole Normale Supérieure, 24 rue Lhomond, 75231, Paris Cedex 05, France.
Physical Review Letters
|February 7, 2003
Summary
Rayleigh scattering in optical lattices measures atomic cooling rates, not atom transport. Spatial diffusion contributes a broader resonance to the scattering spectrum.
Area of Science:
- Atomic, molecular, and optical physics
- Condensed matter physics
Background:
- Investigating Rayleigh scattering in dissipative optical lattices.
- Examining recent proposals on Rayleigh resonance origin.
Purpose of the Study:
- Determine if Rayleigh resonance probes atom transport via density grating diffraction.
- Clarify the physical meaning of the Rayleigh line in optical lattices.
Main Methods:
- Analysis of Rayleigh scattering in dissipative optical lattices.
- Theoretical investigation following established proposals.
Main Results:
- Rayleigh resonance does not originate from diffraction on a density grating.
- The Rayleigh line primarily measures the atomic cooling rate.
- Spatial diffusion contributes a broader resonance to the scattering spectrum.
Conclusions:
- Rayleigh scattering in optical lattices is a measure of cooling rate.
- It is not a direct probe of atom transport through density grating diffraction.