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Feedback cooling of a single trapped ion

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arxiv quant-ph/0509125 v1 pith:ITRXGV4H submitted 2005-09-19 quant-ph

Feedback cooling of a single trapped ion

classification quant-ph
keywords coolingfeedbacksinglebelowcoldcontroldampingdemonstrate
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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.

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