Abstract

Parameter estimation is a pivotal task, where quantum technologies can enhance precision greatly. We investigate the time-dependent parameter estimation based on deep reinforcement learning, where the noise-free and noisy bounds of parameter estimation are derived from a geometrical perspective. We propose a physical-inspired linear time-correlated control ansatz and a general well-defined reward function integrated with the derived bounds to accelerate the network training for fast generating quantum control signals. In the light of the proposed scheme, we validate the performance of time-dependent and time-independent parameter estimation under noise-free and noisy dynamics. In particular, we evaluate the transferability of the scheme when the parameter has a shift from the true parameter. The simulation showcases the robustness and sample efficiency of the scheme and achieves the state-of-the-art performance. Our work highlights the universality and global optimality of deep reinforcement learning over conventional methods in practical parameter estimation of quantum sensing.

Details

Title
Parameter estimation in quantum sensing based on deep reinforcement learning
Author
Xiao Tailong 1 ; Fan Jianping 2 ; Zeng Guihua 1 

 Shanghai Jiao Tong University, State Key Laboratory of Advanced Optical Communication Systems and Networks, and Center of Quantum Sensing and Information Processing, Shanghai, China (GRID:grid.16821.3c) (ISNI:0000 0004 0368 8293) 
 University of North Carolina-Charlotte, Department of Computer Science, Charlotte, USA (GRID:grid.266859.6) (ISNI:0000 0000 8598 2218) 
Publication year
2022
Publication date
2022
Publisher
Nature Publishing Group
e-ISSN
20566387
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2618381146
Copyright
© The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.