Abstract:We study, numerically and experimentally, the momentum distribution of atoms
cooled in optical lattices. Using semi-classical simulations, we show that this
distribution is bimodal, made up of a central feature corresponding to "cold",
trapped atoms, with tails of "hot", untrapped atoms, and that this holds true
also for very shallow potentials. Careful analysis of the distribution of
high-momentum untrapped atoms, both from simulations and experiments, shows
that the tails of the distribution does not follow … Show more
“…Temperature is known to be modified in the presence of an optical lattice [197,198,199]. We will address in the following paragraphs this question in the presence of different 2D beam configurations.…”
“…Temperature is known to be modified in the presence of an optical lattice [197,198,199]. We will address in the following paragraphs this question in the presence of different 2D beam configurations.…”
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