title: Ultraefficient cooling of resonators: beating sideband cooling with quantum control.
abstract: 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.
authors: Department of Applied Mathematics & Theoretical Physics, University of Cambridge, Cambridge, CB3 0WA, United Kingdom.
authors: Xiaoting
authors: X
authors: Wang
authors: Sai
authors: S
authors: Vinjanampathy
authors: Frederick W
authors: FW
authors: Strauch
authors: Kurt
authors: K
authors: Jacobs