Robust excitation of 229Th via generalized composite pulses: Compensating generic errors across arbitrary pulse shapes

doi:10.1088/1674-1056/ae4e8d

中国物理B ›› 2026, Vol. 35 ›› Issue (6): 63201-063201.doi: 10.1088/1674-1056/ae4e8d

Robust excitation of ²²⁹Th via generalized composite pulses: Compensating generic errors across arbitrary pulse shapes

Rui Zhao(赵睿)^1,2, and Yingdan Wang(王颖丹)^1,†

1 Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China;
2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

收稿日期:2026-01-19 修回日期:2026-02-28 接受日期:2026-03-07 发布日期:2026-06-05
通讯作者: Yingdan Wang E-mail:yingdan.wang@itp.ac.cn
基金资助:
Project supported by the Fundamental and Interdisciplinary Frontier Research Priority Program of the Chinese Academy of Sciences (Grant No. XDB0920000), the National Natural Science Foundation of China (Grant No. 12275331), and the Fund from the Penghuanwu Innovative Research Center (Grant No. 12447101).

Robust excitation of ²²⁹Th via generalized composite pulses: Compensating generic errors across arbitrary pulse shapes

Rui Zhao(赵睿)^1,2, and Yingdan Wang(王颖丹)^1,†

1 Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China;
2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

Received:2026-01-19 Revised:2026-02-28 Accepted:2026-03-07 Published:2026-06-05
Contact: Yingdan Wang E-mail:yingdan.wang@itp.ac.cn
Supported by:
Project supported by the Fundamental and Interdisciplinary Frontier Research Priority Program of the Chinese Academy of Sciences (Grant No. XDB0920000), the National Natural Science Foundation of China (Grant No. 12275331), and the Fund from the Penghuanwu Innovative Research Center (Grant No. 12447101).

摘要/Abstract

摘要： High-fidelity coherent control is a universal challenge due to complex errors and imperfect pulse shapes. Here, we propose a generalized composite pulses scheme independent of pulse profile to correct generic errors. This approach could simultaneously compensate for pulse area errors, detuning, and phase imperfections. We demonstrate its application in the direct laser excitation of the ²²⁹Th nucleus isomer state, and show a significant improvement in the robustness against various operation errors, such as detuning, phase error, and pulse area error.

关键词: thorium-229, isomeric state, nuclear excitation, composite pulses

Abstract: High-fidelity coherent control is a universal challenge due to complex errors and imperfect pulse shapes. Here, we propose a generalized composite pulses scheme independent of pulse profile to correct generic errors. This approach could simultaneously compensate for pulse area errors, detuning, and phase imperfections. We demonstrate its application in the direct laser excitation of the ²²⁹Th nucleus isomer state, and show a significant improvement in the robustness against various operation errors, such as detuning, phase error, and pulse area error.

Key words: thorium-229, isomeric state, nuclear excitation, composite pulses

中图分类号: (Coherent control of atomic interactions with photons)

32.80.Qk

06.30.Ft (Time and frequency) 03.67.Bg (Entanglement production and manipulation)

Rui Zhao(赵睿), and Yingdan Wang(王颖丹). Robust excitation of ²²⁹Th via generalized composite pulses: Compensating generic errors across arbitrary pulse shapes[J]. 中国物理B, 2026, 35(6): 63201-063201.

Rui Zhao(赵睿), and Yingdan Wang(王颖丹). Robust excitation of ²²⁹Th via generalized composite pulses: Compensating generic errors across arbitrary pulse shapes[J]. Chin. Phys. B, 2026, 35(6): 63201-063201.

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Robust excitation of ²²⁹Th via generalized composite pulses: Compensating generic errors across arbitrary pulse shapes

Robust excitation of ²²⁹Th via generalized composite pulses: Compensating generic errors across arbitrary pulse shapes

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