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arXiv · 1309.4783

Squeezing of mechanical motion via qubit-assisted control

Marco G. Genoni·Matteo Bina·Stefano Olivares·Gabriele De Chiara·Mauro Paternostro
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Abstract

We propose a feedback control mechanism for the squeezing of the phononic mode of a mechanical oscillator. We show how, under appropriate working conditions, a simple adiabatic approach is able to induce mechanical squeezing. We then go beyond the limitations of such a working point and demonstrate the stationary squeezing induced by using repeated measurements and re-initialisation of the state of a two-level system ancilla coupled to the oscillator. Our non-adaptive feedback loop offers interesting possibilities for quantum state engineering and steering in open-system scenarios.

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Marco G. Genoni, Matteo Bina, Stefano Olivares, Gabriele De Chiara, Mauro Paternostro. 2015-01-21. Squeezing of mechanical motion via qubit-assisted control. https://doi.org/10.1088/1367-2630%2F17%2F1%2F013034

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