Electron Orbital Angular Momentum Polarization in Neutral Atoms
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866909674797793280 |
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| author | Hu, Hongtao Mai, Sebastian Peng, Peng Baltuška, Andrius Xie, Xinhua |
| author_facet | Hu, Hongtao Mai, Sebastian Peng, Peng Baltuška, Andrius Xie, Xinhua |
| contents | We demonstrate the polarization of electron orbital angular momentum (OAM) in neutral atoms by integrating the Zeeman effect with attosecond transient absorption spectroscopy (ATAS). Using density matrix simulations, we show that in a helium atom, the absorption probability asymmetry between mj=-1 and mj = 1 in the 1s2p state can be precisely controlled by adjusting the time delay between infrared (IR) and extreme ultraviolet (XUV) fields, the strength of an applied static magnetic field, as well as the angle between laser polarization and magnetic field direction. This approach has significant implications across various fields, including quantum computing, quantum communication, and spintronics. Moreover, it paves the way for advancements in applications such as manipulating chemical reactions control, tailoring the magnetic properties of matter, and enabling novel laser emissions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_02499 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Electron Orbital Angular Momentum Polarization in Neutral Atoms Hu, Hongtao Mai, Sebastian Peng, Peng Baltuška, Andrius Xie, Xinhua Atomic Physics Quantum Physics We demonstrate the polarization of electron orbital angular momentum (OAM) in neutral atoms by integrating the Zeeman effect with attosecond transient absorption spectroscopy (ATAS). Using density matrix simulations, we show that in a helium atom, the absorption probability asymmetry between mj=-1 and mj = 1 in the 1s2p state can be precisely controlled by adjusting the time delay between infrared (IR) and extreme ultraviolet (XUV) fields, the strength of an applied static magnetic field, as well as the angle between laser polarization and magnetic field direction. This approach has significant implications across various fields, including quantum computing, quantum communication, and spintronics. Moreover, it paves the way for advancements in applications such as manipulating chemical reactions control, tailoring the magnetic properties of matter, and enabling novel laser emissions. |
| title | Electron Orbital Angular Momentum Polarization in Neutral Atoms |
| topic | Atomic Physics Quantum Physics |
| url | https://arxiv.org/abs/2507.02499 |