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arXiv · 1209.3926

Interaction of atomic quantum gases with a single carbon nanotube

Martin Fink·Tim-Oliver Müller·Johannes Eiglsperger·Javier Madroñero
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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.

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Martin Fink, Tim-Oliver Müller, Johannes Eiglsperger, Javier Madroñero. 2013-01-24. Interaction of atomic quantum gases with a single carbon nanotube. https://doi.org/10.1209/0295-5075%2F102%2F33001

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