Cooling of a Micro-mechanical Resonator by the Back-action of Lorentz Force
arXiv:0704.2462 · doi:10.1088/1367-2630/10/4/043015
Abstract
Using a semi-classical approach, we describe an on-chip cooling protocol for a micro-mechanical resonator by employing a superconducting flux qubit. A Lorentz force, generated by the passive back-action of the resonator's displacement, can cool down the thermal motion of the mechanical resonator by applying an appropriate microwave drive to the qubit. We show that this onchip cooling protocol, with well-controlled cooling power and a tunable response time of passive back-action, can be highly efficient. With feasible experimental parameters, the effective mode temperature of a resonator could be cooled down by several orders of magnitude.
arXiv comment10 pages, 4 figures
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