Bose-Einstein Condensate Coupled to a Nanomechanical Resonator on an Atom Chip

Philipp Treutlein, David Hunger, Stephan Camerer, Theodor W. Hänsch, and Jakob Reichel
Phys. Rev. Lett. 99, 140403 – Published 3 October 2007

Abstract

We theoretically study the coupling of Bose-Einstein condensed atoms to the mechanical oscillations of a nanoscale cantilever with a magnetic tip. This is an experimentally viable hybrid quantum system which allows one to explore the interface of quantum optics and condensed matter physics. We propose an experiment where easily detectable atomic spin flips are induced by the cantilever motion. This can be used to probe thermal oscillations of the cantilever with the atoms. At low cantilever temperatures, as realized in recent experiments, the backaction of the atoms onto the cantilever is significant and the system represents a mechanical analog of cavity quantum electrodynamics. With high but realistic cantilever quality factors, the strong coupling regime can be reached, either with single atoms or collectively with Bose-Einstein condensates. We discuss an implementation on an atom chip.

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  • Received 22 March 2007

DOI:https://doi.org/10.1103/PhysRevLett.99.140403

©2007 American Physical Society

Authors & Affiliations

Philipp Treutlein1,*, David Hunger1, Stephan Camerer1, Theodor W. Hänsch1, and Jakob Reichel2

  • 1Max-Planck-Institut für Quantenoptik and Fakultät für Physik der Ludwig-Maximilians-Universität, Schellingstrasse 4, 80799 München, Germany
  • 2Laboratoire Kastler Brossel de l’E.N.S., 24 Rue Lhomond, 75231 Paris Cedex 05, France

  • *treutlein@lmu.de

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Vol. 99, Iss. 14 — 5 October 2007

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