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Superconducting Qubits Open Quantum Systems Decoherence

Cooling of a Micro-mechanical Resonator by the Back-action of Lorentz Force

arXiv

Authors: Y. D. Wang, K. Semba, H. Yamaguchi

Year

2007

Paper ID

50532

Status

Preprint

Abstract Read

~2 min

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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.

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Using a semi-classical approach, we describe an on-chip cooling protocol for a micro-mechanical resonator by employing a superconducting flux qubit.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0704.2462 [2] arXiv https://arxiv.org/abs/0704.2462 [3] Publisher https://arxiv.org/abs/0704.2462

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