Opto- and electro-mechanical entanglement improved by modulation

Details Opto- and electro-mechanical entanglement improved by modulation Opto- and electro-mechanical entanglement improved by modulation

2011-11-10

arxiv.org/abs/1111.2415v1

Physics

Quantum Physics

6 pages, 4 figures

Scientific paper

One of the main milestones in the study of opto- and electro-mechanical systems is to certify entanglement between a mechanical resonator and an optical or microwave mode of a cavity field. In this work, we show how a suitable time-periodic modulation can help to achieve large degrees of entanglement, building upon the framework introduced in [Phys. Rev. Lett. 103, 213603 (2009)]. It is demonstrated that with suitable driving, the maximum degree of entanglement can be significantly enhanced, in a way exhibiting a non-trivial dependence on the specifics of the modulation. Such time-dependent driving might help experimentally achieving entangled mechanical systems also in situations when quantum correlations are otherwise suppressed by thermal noise.

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