Scaling and Suppression of Anomalous Heating in Ion Traps

Deslauriers, L, Olmschenk, S, Stick, D, Hensinger, W K, Sterk, J and Monroe, C (2006) Scaling and Suppression of Anomalous Heating in Ion Traps. Physical Review Letters (PRL), 97 (10). pp. 103007-103011. ISSN 0031-9007

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We measure and characterize anomalous motional heating of an atomic ion confined in the lowest quantum levels of a novel rf ion trap that features moveable electrodes. The scaling of heating with electrode proximity is measured, and when the electrodes are cooled from 300 to 150 K, the heating rate is suppressed by an order of magnitude. This provides direct evidence that anomalous motional heating of trapped ions stems from microscopic noisy potentials on the electrodes that are thermally driven. These observations are relevant to decoherence in quantum information processing schemes based on trapped ions and perhaps other charge-based quantum systems.

Item Type: Article
Additional Information: I was the PDRA in charge and carried out a significant amount of work for this first experimental measurement of scaling laws for motional heating, the realization of smallest ion trap built so far, and the discovery of a significant reduction of motional heating when the electrodes are mildly cooled.
Keywords: Ion traps
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: Gemma Farrell
Date Deposited: 02 Dec 2007
Last Modified: 07 Mar 2017 08:55
Google Scholar:124 Citations

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