Iterative Adaptive Spectroscopy of Short Signals

• URL: http://arxiv.org/abs/2204.04736v1
• Date: Sun, 10 Apr 2022 18:07:50 GMT
• Title: Iterative Adaptive Spectroscopy of Short Signals
• Authors: Avishek Chowdhury, Anh Tuan Le, Eva M. Weig and Hugo Ribeiro
• Abstract summary: We develop an adaptive frequency sensing protocol based on Ramsey interferometry. High precision is achieved by enhancing the Ramsey sequence to prepare with high fidelity both the sensing and readout state.
• Score: 0.1338174941551702
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: 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.

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