Department of Physics and Applied Physics, Yale University, New Haven, Connecticut 06520, USA.
Phys Rev Lett. 2011 Aug 5;107(6):063602. doi: 10.1103/PhysRevLett.107.063602. Epub 2011 Aug 3.
Optomechanics experiments are rapidly approaching the regime where the radiation pressure of a single photon displaces the mechanical oscillator by more than its zero-point uncertainty. We show that in this limit the power spectrum has multiple sidebands and that the cavity response has several resonances in the resolved-sideband limit. Using master-equation simulations, we also study the crossover from the weak-coupling many-photon to the single-photon strong-coupling regime. Finally, we find non-Gaussian steady states of the mechanical oscillator when multiphoton transitions are resonant. Our study provides the tools to detect and take advantage of this novel regime of optomechanics.
单光子的辐射压力超过机械振荡器的零点不确定性。我们表明，在这个极限下，功率谱具有多个边带，并且在分辨边带极限下，腔响应具有多个共振。使用主方程模拟，我们还研究了从弱耦合多光子到单光子强耦合的转变。最后，当多光子跃迁共振时，我们发现机械振荡器的非高斯稳态。我们的研究提供了检测和利用这种新型光机械的工具。
