COOLING AND LOCALIZATION DYNAMICS IN OPTICAL LATTICES

Citation
G. Raithel et al., COOLING AND LOCALIZATION DYNAMICS IN OPTICAL LATTICES, Physical review letters, 78(4), 1997, pp. 630-633
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
ISSN journal
0031-9007
Volume
78
Issue
4
Year of publication
1997
Pages
630 - 633
Database
ISI
SICI code
0031-9007(1997)78:4<630:CALDIO>2.0.ZU;2-N
Abstract
Using Bragg scattering as a sensitive probe, we study how atoms are co oled and localized after the sudden turn-on of 1D and 3D optical latti ces. We measure the time evolution of the mean-square position spread of the atoms in the lattice potential wells, a quantity proportional t o their effective temperature. The rate of exponential approach to equ ilibrium is proportional to the photon scattering rate and about 6 tim es faster in 1D than in 3D. This simple proportionality was unexpected , based on the usual model of Sisyphus cooling, but is in agreement wi th our 1D Monte Carlo simulations.