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arXiv · 1405.2495

Phonon amplification in two coupled cavities containing one mechanical resonator

Hui Wang·Zhixin Wang·Jing Zhang·Sahin Kaya Ozdemir·Lan Yang·Yu-xi Liu
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Abstract

We study a general theory of phonon lasing [I. S. Grudinin et al., Phys. Rev. Lett. 104, 083901 (2010)] in coupled optomechancial systems. We derive the dynamical equation of the phonon lasing using supermodes formed by two cavity modes. A general threshold condition for phonon lasing is obtained. We also show the differences between phonon lasing and photon lasing, generated by photonic supermodes and two-level atomic systems, respectively. We find that the phonon lasing can be realized in certain parameter regime near the threshold. The phase diagram and second-order correlation function of the phonon lasing are also studied to show some interesting phenomena that cannot be observed in the common photon lasing with the two-level systems.

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Hui Wang, Zhixin Wang, Jing Zhang, Sahin Kaya Ozdemir, Lan Yang, Yu-xi Liu. 2014-05-11. Phonon amplification in two coupled cavities containing one mechanical resonator. https://doi.org/10.1103/physreva.90.053814

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