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Superconducting Qubits
Open Quantum Systems Decoherence
Passive Cooling of a Micromechanical Oscillator with a Resonant Electric Circuit
arXiv
Authors: K. R. Brown, J. Britton, R. J. Epstein, J. Chiaverini, D. Leibfried, D. J. Wineland
Year
2007
Paper ID
50367
Status
Preprint
Abstract Read
~2 min
Abstract Words
90
Citations
N/A
Abstract
We cool the fundamental mode of a miniature cantilever by capacitively coupling it to a driven rf resonant circuit. Cooling results from the rf capacitive force, which is phase shifted relative to the cantilever motion. We demonstrate the technique by cooling a 7 kHz cantilever from room temperature to 45 K, obtaining reasonable agreement with a model for the cooling, damping, and frequency shift. Extending the method to higher frequencies in a cryogenic system could enable ground state cooling and may prove simpler than related optical experiments in a low temperature apparatus.
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- We cool the fundamental mode of a miniature cantilever by capacitively coupling it to a driven rf resonant circuit.
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