论文标题
短信号的迭代自适应光谱
Iterative Adaptive Spectroscopy of Short Signals
论文作者
论文摘要
我们基于两级系统的Ramsey干涉法开发了一种迭代的自适应频率传感协议。我们的方案允许从短，有限的信号中估算高精度的未知频率。它避免了几个与处理信号处理有关的问题，并减少了与采样有关的实验间接费用。通过增强Ramsey序列来制备高度精度，以高保真感测和读取状态，并在估计傅立叶变换频率时使用迭代过程来减轻系统错误。
We develop an iterative, adaptive frequency sensing protocol based on Ramsey interferometry of a two-level system. Our scheme allows one to estimate unknown frequencies with a high precision from short, finite signals. It avoids several issues related to processing of decaying signals and reduces the experimental overhead related to sampling. High precision is achieved by enhancing the Ramsey sequence to prepare with high fidelity both the sensing and readout state and by using an iterative procedure built to mitigate systematic errors when estimating frequencies from Fourier transforms.
