We report on the experimental investigation of two-particle correlations between neutral atoms in a Hanbury Brown and Twiss experiment. Both an atom laser beam and a pseudo-thermal atomic beam are extracted from a Bose-Einstein condensate and the atom flux is measured with a single atom counter. We determine the conditional and the unconditional detection probabilities for the atoms in the beam and find good agreement with the theoretical predictions.
@article{arxiv.cond-mat/0607172,
title = {Time interval distributions of atoms in atomic beams},
author = {Michael Köhl and Anton Öttl and Stephan Ritter and Tobias Donner and Thomas Bourdel and Tilman Esslinger},
journal= {arXiv preprint arXiv:cond-mat/0607172},
year = {2007}
}