Interaction of atomic quantum gases with a single carbon nanotube
Abstract
We study inelastic processes in the hybrid quantum system constituted by a carbon nanotube (CNT) in contact with an ultracold quantum gas, such as a cloud of thermal atoms or a Bose-Einstein condensate (BEC). We present a parameter-free ab-initio approach for the loss rate based on the underlying scattering process, considering the two-dimensional character of the system as well as the exact Casimir-Polder potential. The predicted loss rates are in perfect agreement with recent experimental results, obtained both for a thermal cloud of rubidium atoms and for a BEC. For the trap loss of a thermal cloud, we find that retardation effects become important and contribute significantly, which emphasises the crucial role of the exact interaction potential.
Keywords
Cite
@article{arxiv.1209.3926,
title = {Interaction of atomic quantum gases with a single carbon nanotube},
author = {Martin Fink and Tim-Oliver Müller and Johannes Eiglsperger and Javier Madroñero},
journal= {arXiv preprint arXiv:1209.3926},
year = {2013}
}