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arXiv · 1305.0290

Driving a mechanical resonator in to coherent states via random measurements

Lluc Garcia·Ravindra W. Chhajlany·Yong Li·Lian-Ao Wu
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Abstract

We propose dynamical schemes to engineer coherent states of a mechanical resonator coupled to an ancillary, superconducting flux qubit. The flux qubit, when repeatedly projected on to its ground state drives the mechanical resonator in to a coherent state in probabilistic, albeit heralded fashion. Assuming no operations on the state of the mechanical resonator during the protocol, coherent states are successfully generated only up to a certain value of the displacement parameter. This restriction can be overcome at the cost of a one-time operation on the initial state of the mechanical resonator. We discuss the possibility of experimental realization of the presented schemes.

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Lluc Garcia, Ravindra W. Chhajlany, Yong Li, Lian-Ao Wu. 2013-05-01. Driving a mechanical resonator in to coherent states via random measurements. https://doi.org/10.1088/1751-8113/46/48/485305

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