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arXiv · 0812.0261

Cooling a micro-mechanical resonator by quantum back-action from a noisy qubit

Ying-Dan Wang·Yong Li·Fei Xue·C. Bruder·K. Semba
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Abstract

We study the role of qubit dephasing in cooling a mechanical resonator by quantum back-action. With a superconducting flux qubit as a specific example, we show that ground-state cooling of a mechanical resonator can only be realized if the qubit dephasing rate is sufficiently low.

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Ying-Dan Wang, Yong Li, Fei Xue, C. Bruder, K. Semba. 2008-12-01. Cooling a micro-mechanical resonator by quantum back-action from a noisy qubit. https://doi.org/10.1103/physrevb.80.144508

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