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Feedback cooling of a single trapped ion |
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| Authors: | Bushev Pavel Rotter Daniel Wilson Alex Dubin François Becher Christoph Eschner Jürgen Blatt Rainer Steixner Viktor Rabl Peter Zoller Peter |
| Affiliation: | Institute for Experimental Physics, University of Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria. |
| Abstract: | Based on a real-time measurement of the motion of a single ion in a Paul trap, we demonstrate its electromechanical cooling below the Doppler limit by homodyne feedback control (cold damping). The feedback cooling results are well described by a model based on a quantum mechanical master equation. |
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