We study inelastic collisions in a pure, trapped sample of Feshbach molecules made of bosonic cesium atoms in the quantum halo regime. We measure the relaxation rate coefficient for decay to lower-lying molecular states and study the dependence on scattering length and temperature. We identify a pronounced loss minimum with varying scattering length along with a further suppression of loss with decreasing temperature. Our observations provide insight into the physics of a few-body quantum system that consists of four identical bosons at large values of the two-body scattering length.
%0 Journal Article
%1 arXiv:0803.4078
%A Ferlaino, F.
%A Knoop, S.
%A Mark, M.
%A Berninger, M.
%A Schöbel, H.
%A Nägerl, H.-C.
%A Grimm, R.
%D 2008
%K
%T Collisions between tunable halo dimers: exploring an elementary four-body process with identical bosons
%U http://arxiv.org/pdf/0803.4078
%X We study inelastic collisions in a pure, trapped sample of Feshbach molecules made of bosonic cesium atoms in the quantum halo regime. We measure the relaxation rate coefficient for decay to lower-lying molecular states and study the dependence on scattering length and temperature. We identify a pronounced loss minimum with varying scattering length along with a further suppression of loss with decreasing temperature. Our observations provide insight into the physics of a few-body quantum system that consists of four identical bosons at large values of the two-body scattering length.
@article{arXiv:0803.4078,
abstract = {We study inelastic collisions in a pure, trapped sample of Feshbach molecules made of bosonic cesium atoms in the quantum halo regime. We measure the relaxation rate coefficient for decay to lower-lying molecular states and study the dependence on scattering length and temperature. We identify a pronounced loss minimum with varying scattering length along with a further suppression of loss with decreasing temperature. Our observations provide insight into the physics of a few-body quantum system that consists of four identical bosons at large values of the two-body scattering length.},
added-at = {2010-05-31T12:31:40.000+0200},
author = {Ferlaino, F. and Knoop, S. and Mark, M. and Berninger, M. and Schöbel, H. and Nägerl, H.-C. and Grimm, R.},
biburl = {https://www.bibsonomy.org/bibtex/2af90819ec5c84b7dcd5f6f86a4e131aa/tobiasgt79},
e-print = {arXiv:0803.4078},
interhash = {0cf7b25a5d26f62e4e7dea9a1ad4a8e9},
intrahash = {af90819ec5c84b7dcd5f6f86a4e131aa},
keywords = {},
month = {3},
timestamp = {2010-05-31T12:31:40.000+0200},
title = {Collisions between tunable halo dimers: exploring an elementary four-body process with identical bosons},
url = {http://arxiv.org/pdf/0803.4078},
year = 2008
}