Ultraefficient cooling of resonators: beating sideband cooling with quantum control

The present state of the art in cooling mechanical resonators is a version of sideband cooling. Here we present a method that uses the same configuration as sideband cooling-coupling the resonator to be cooled to a second microwave (or optical) auxiliary resonator-but will cool significantly colder....

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Bibliographic Details
Published in:Physical review letters 2011-10, Vol.107 (17), p.177204-177204, Article 177204
Main Authors: Wang, Xiaoting, Vinjanampathy, Sai, Strauch, Frederick W, Jacobs, Kurt
Format: Article
Language:English
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Summary:The present state of the art in cooling mechanical resonators is a version of sideband cooling. Here we present a method that uses the same configuration as sideband cooling-coupling the resonator to be cooled to a second microwave (or optical) auxiliary resonator-but will cool significantly colder. This is achieved by varying the strength of the coupling between the two resonators over a time on the order of the period of the mechanical resonator. As part of our analysis, we also obtain a method for fast, high-fidelity quantum information transfer between resonators.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.107.177204