2007/04/30 by Y. D. Wang, Ying-Dan Wang, K. Semba +3 · 1 citation
Engineering · Physics and Astronomy · #Action (physics) #Advanced MEMS and NEMS Technologies #Chip #Displacement (psychology) #Electrical engineering #Lorentz force #Mechanical and Optical Resonators #Microwave #Optoelectronics #Photonic and Optical Devices #Physics #Power (physics) #Quantum #Quantum mechanics #Qubit #Resonator #cond-mat.mes-hall #quant-ph
paper · pdf · doi:10.1088/1367-2630/10/4/043015
published as New J. Phys. 10 043015 (2008) · 10 pages, 4 figures
openalex publication_date 2008/04/01 · arxiv created 2009/02/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 on-chip 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.