Berlin 2014 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 16: Poster: Quantum information, micromechanical oscillators, matter wave optics, precision measurements and metrology
Q 16.52: Poster
Montag, 17. März 2014, 16:30–18:30, Spree-Palais
A Hybrid System in the Quantum Regime — •Christina Staarmann1, Andreas Bick1, Philipp Christoph1, Ortwin Hellmig1, Christoph Becker1, Klaus Sengstock1, Hai Zhong2, Gotthold Fläschner2, Alexander Schwarz2, and Roland Wiesendanger2 — 11Center for Optical Quantum Technologies, Hamburg, Germany — 2Insitute for Applied Physics, Hamburg, Germany
In this poster we present work towards a new hybrid quantum system consisting of a Bose-Einstein condensate coupled to a mechanical oscillator. Our combined system offers the possibility to use the large toolbox available to control and manipulate ultracold atoms for the benefit of the hybrid device and will thus open completely new avenues for the manipulation, preparation and detection of the mechanical oscillator e.g. the development of new cooling schemes. By laser cooling the atoms it is possible via a suitable coupling mechanism to damp the motion of the mechanical oscillator. Vice versa the mechanical element can be utilized as a non-destructive sensor for the atomic system, giving rise to new prospects for the field of ultracold quantum gases.
We will employ an optical lattice to couple a Rubidium-BEC to a high-Q micromechanical membrane, which is situated inside a fiber Fabry-Perot cavity. As a convenient starting point to reach the ground state of the oscillator the membrane setup will be pre-cooled inside a dilution cryostat.
This work is supported by the Landesexzellenzinitiative Hamburg, the Joachim Herz Stiftung and the ERC Advanced Grant "FURORE".