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Compensation of power line-induced magnetic interference in trapped-ion system.

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Title: Compensation of power line-induced magnetic interference in trapped-ion system.
Authors: Hu, Han1 (AUTHOR), Xie, Yi1,2 (AUTHOR), Zhang, Man-chao1 (AUTHOR), Qin, Qing-qing1,2 (AUTHOR), Zhang, Jie1,2 (AUTHOR), Su, Wen-bo1 (AUTHOR), Zhan, Tian-xiang1 (AUTHOR), Wu, Chun-wang1,2 (AUTHOR), Chen, Ping-xing1,2,3 (AUTHOR), Wu, Wei1,2,3 (AUTHOR) weiwu@nudt.edu.cn
Source: Applied Physics B: Lasers & Optics. Nov2023, Vol. 129 Issue 11, p1-6. 6p.
Subjects: Arbitrary waveform generators, Electric lines, Magnetic ions, Ion traps, Magnetic fields
Abstract: The low-frequency magnetic interference induced by the laboratory power supply is one of the main decoherence sources of trapped-ion qubits. Synchronizing the experimental sequence with the phase of power line is widely used to mitigate this problem, but this results in a significant decrease in experimental efficiency. In this paper, we experimentally demonstrate a simple active compensation method to reduce the observed 50 Hz and 150 Hz strong magnetic interference in an ion trap induced by the power line. In our method, a single 40 Ca + ion is used as the magnetic probe and an reverse compensation signal is generated by a programmable arbitrary waveform generator (AWG). After compensation, an 86 % reduction of the periodic magnetic field fluctuation and over 35-fold extension of the coherence time from 70 to 2500 μ s were observed. This method can also be applied to suppress other spectral components of the magnetic field fluctuation related to the power line, and it is also useful for other atomic systems such as neutral atoms. [ABSTRACT FROM AUTHOR]
Copyright of Applied Physics B: Lasers & Optics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Compensation of power line-induced magnetic interference in trapped-ion system.
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  Data: <searchLink fieldCode="AR" term="%22Hu%2C+Han%22">Hu, Han</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xie%2C+Yi%22">Xie, Yi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Man-chao%22">Zhang, Man-chao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Qin%2C+Qing-qing%22">Qin, Qing-qing</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Jie%22">Zhang, Jie</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Su%2C+Wen-bo%22">Su, Wen-bo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhan%2C+Tian-xiang%22">Zhan, Tian-xiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Chun-wang%22">Wu, Chun-wang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Ping-xing%22">Chen, Ping-xing</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Wei%22">Wu, Wei</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> weiwu@nudt.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Applied+Physics+B%3A+Lasers+%26+Optics%22">Applied Physics B: Lasers & Optics</searchLink>. Nov2023, Vol. 129 Issue 11, p1-6. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Arbitrary+waveform+generators%22">Arbitrary waveform generators</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+lines%22">Electric lines</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+ions%22">Magnetic ions</searchLink><br /><searchLink fieldCode="DE" term="%22Ion+traps%22">Ion traps</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+fields%22">Magnetic fields</searchLink>
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  Label: Abstract
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  Data: The low-frequency magnetic interference induced by the laboratory power supply is one of the main decoherence sources of trapped-ion qubits. Synchronizing the experimental sequence with the phase of power line is widely used to mitigate this problem, but this results in a significant decrease in experimental efficiency. In this paper, we experimentally demonstrate a simple active compensation method to reduce the observed 50 Hz and 150 Hz strong magnetic interference in an ion trap induced by the power line. In our method, a single 40 Ca + ion is used as the magnetic probe and an reverse compensation signal is generated by a programmable arbitrary waveform generator (AWG). After compensation, an 86 % reduction of the periodic magnetic field fluctuation and over 35-fold extension of the coherence time from 70 to 2500 μ s were observed. This method can also be applied to suppress other spectral components of the magnetic field fluctuation related to the power line, and it is also useful for other atomic systems such as neutral atoms. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Applied Physics B: Lasers & Optics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00340-023-08106-8
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      – SubjectFull: Arbitrary waveform generators
        Type: general
      – SubjectFull: Electric lines
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      – SubjectFull: Magnetic ions
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      – SubjectFull: Ion traps
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      – SubjectFull: Magnetic fields
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      – TitleFull: Compensation of power line-induced magnetic interference in trapped-ion system.
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            – D: 01
              M: 11
              Text: Nov2023
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              Y: 2023
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