论文标题
来自量子声调制的两级系统的光子散射
Photon scattering from a quantum acoustically modulated two-level system
论文作者
论文摘要
我们计算一个耦合到量化声子模式的两级系统的共振荧光信号。通过在独立的玻色子模型中处理声子，并且不执行其描述中的任何近似值，我们还可以访问声子的状态演化。我们通过模拟初始准古典相干声子状态的极限来确认我们的模型的有效性，可以将其与半经典限制的实验确认的结果进行比较。此外，我们通过接近语音真空预测纯量子机械声子状态极限的光子散射光谱。我们的方法进一步使我们能够通过计算Wigner函数来模拟光散射过程对声子状态的影响。我们表明，通过光激发过程将声子模式带入了特征量子状态。
We calculate the resonance fluorescence signal of a two-level system coupled to a quantized phonon mode. By treating the phonons in the independent boson model and not performing any approximations in their description, we also have access to the state evolution of the phonons. We confirm the validity of our model by simulating the limit of an initial quasi-classical coherent phonon state, which can be compared to experimentally confirmed results in the semiclassical limit. In addition we predict photon scattering spectra in the limit of purely quantum mechanical phonon states by approaching the phononic vacuum. Our method further allows us to simulate the impact of the light scattering process on the phonon state by calculating Wigner functions. We show that the phonon mode is brought into characteristic quantum states by the optical excitation process.
