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arXiv 2204.04736physics.app-phquant-ph
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短信号的迭代自适应光谱分析

Iterative Adaptive Spectroscopy of Short Signals

Avishek Chowdhury, Anh Tuan Le, Eva M. Weig, Hugo Ribeiro

AI总结:

本文提出基于二能级系统 Ramsey 干涉测量的迭代自适应频率传感协议,通过高保真态制备和迭代校正,从短有限信号中高精度估计未知频率并降低采样开销。

摘要:

我们基于二能级系统的 Ramsey 干涉测量,开发了一种迭代式自适应频率传感协议。该方案使人们能够从短暂的有限信号中高精度估计未知频率。它避免了与衰减信号处理相关的若干问题,并降低了与采样相关的实验开销。高精度的实现方式是:增强 Ramsey 序列,以高保真度制备传感态和读出态;并采用一种迭代程序,用于减轻由傅里叶变换估计频率时的系统误差。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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