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 language | English |
|---|---|
| Article number | 013410 |
| Pages (from-to) | 134101-1341012 |
| Number of pages | 1206912 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 69 |
| Issue number | 1 |
| Publication status | Published - 1 Jan 2004 |