论文标题
光学同伴断层扫描中产生的失真
Distortions produced in optical homodyne tomography
论文作者
论文摘要
对通常用于确定量子光学状态的Wigner函数的同源断层扫描过程的分析，以考虑时空自由度的影响。同源性断层扫描过程通过追踪这些自由度来消除与本地振荡器模式无关的输入状态的部分。使用功能性方法结合了所有时空自由度，我们发现自由度的降低会导致观察到的Wigner函数中的扭曲。该分析还显示了同性断层扫描过程如何引入取决于局部振荡器强度的分辨率。作为例子，我们考虑了连贯的国家，富克州和挤压真空状态。
An analysis of the homodyne tomography process that is often used to determine the Wigner functions of quantum optical states is performed to consider the effects of the spatiotemporal degrees of freedom. The homodyne tomography process removes those parts of the input state that are not associated with the mode of the local oscillator by tracing out those degrees of freedom. Using a functional approach to incorporate all the spatiotemporal degrees of freedom, we find that this reduction in the degrees of freedom introduces distortions in the observed Wigner function. The analysis also shows how the homodyne tomography process introduces a resolution that depends on the strength of the local oscillator. As examples, we consider coherent states, Fock states and squeezed vacuum states.
