Non-Gaussian velocity distributions in optical lattices

Johan Jersblad, Harald Ellmann, Kristian Stochkel, Anders Kastberg, Laurent Sanchez-Palencia, Robin Kaiser

Research output: Contribution to journalArticlepeer-review

Abstract

The Non-Gaussian velocity distributions of atoms cooled in optical lattices was investigated. Several types of functions were tested to better fit the shape of the velocity distributions in the range of parameters corresponding to deeper potentials. It was found that a better fit can be obtained by using a Tsallis function or a double Gaussian. The results show that the velocity distributions are compatible with Gaussian functions for deep enough potential. The results also show that Gaussian function was not the one that best reproduces the data for all parameters.

Original languageEnglish
Article number013410
Pages (from-to)134101-1341012
Number of pages1206912
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume69
Issue number1
Publication statusPublished - 1 Jan 2004

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