Feedback cooling of a single trapped ion

Abstract

Based on a real-time measurement of the motion of a single ion in a Paul trap, we demonstrate its electro-mechanical 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.

4 pages, 3 figures

References in corpus (3)

• Quantum Feedback Control of Atomic Motion in an Optical Cavity
• Forces between a single atom and its distant mirror image
• Quantum feedback cooling of a single trapped ion in front of a mirror

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