论文标题
强耦合的光力系统中量子场波动的光谱分析
Spectral Analysis of Quantum Field Fluctuations in a Strongly Coupled Optomechanical System
论文作者
论文摘要
通过在强且相干的量子光力耦合方面进行的悬空动力学实验，我们证明振荡器充当宽带量子谱分析仪。位移光谱中的正频率分支之间的不对称性轨迹轨迹轨迹在空腔场中量子波动的光谱特征，因此在较宽的光谱范围内进行了探索。此外，在我们的二维机械系统中，由于整体易感性的破坏性干扰，这种真空波动产生的量子反作用在狭窄的光谱区域被强烈抑制。
With a levitodynamics experiment in the strong and coherent quantum optomechanical coupling regime, we demonstrate that the oscillator acts as a broadband quantum spectrum analyzer. The asymmetry between positive and negative frequency branches in the displacement spectrum traces out the spectral features of the quantum fluctuations in the cavity field, which are thus explored over a wide spectral range. Moreover, in our two-dimensional mechanical system the quantum back-action, generated by such vacuum fluctuations, is strongly suppressed in a narrow spectral region due to a destructive interference in the overall susceptibility.
