Dresden 2011 – wissenschaftliches Programm

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SYHQ: Intersectional Symposium Hybrid Quantum Systems - Interfacing Atoms, Solids and Light

SYHQ 1: Hybrid Quantum Systems -- Interfacing Atoms, Solids and Light

SYHQ 1.4: Hauptvortrag

Donnerstag, 17. März 2011, 12:00–12:30, HSZ 01

Interfacing Optomechanics and Atoms — •Klemens Hammerer^1,2,3, Markus Aspelmeyer⁴, Jeff Kimble⁵, Florian Marquardt⁶, Eugene Polzik⁷, Philipp Treutlein⁸, Jun Ye⁹, and Peter Zoller^2,3 — ¹Leibniz Universität Hannover, Hannover, Deutschland — ²Universität Innsbruck, Innsbruck, Österreich — ³IQOQI, Innsbruck, Österreich — ⁴Universität Wien, Wien, Österreich — ⁵Caltech, Pasadena, USA — ⁶Universität Erlangen, Erlangen, Deutschland — ⁷NBI, Kopenhagen, Dänemark — ⁸Universität Basel, Basel, Schweiz — ⁹NIST, Boulder, USA

We propose and analyze setups interfacing opto-mechanical systems with single atoms or atomic ensembles. In particular we show that strong, coherent coupling between a single trapped atom and a mechanical oscillator can be mediated via a laser-driven high-finesse cavity. In free space it is still possible to achieve a coherent coupling between a micromirror and an ensemble of atoms trapped in a standing wave field reflected thereof. Finally, in a travelling wave, pulsed scheme allows for a quantum non-demolition measurement of hybrid atomic-micromechanical Einstein-Podolsky-Rosen variables. The wave function of the massive mechanical oscillator and the collective atomic spin is thereby collapsed into an entangled EPR state. These setups provide the basic toolbox for coherent manipulation, preparation and measurement of micro- and nanomechanical oscillators via the tools of atomic physics.