Scalar axion field of toroidal electromagnetic pulses
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866910107917352960 |
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| author | Yu, Wangke Papasimakis, Nikitas Zheludev, Nikolay I. Shen, Yijie |
| author_facet | Yu, Wangke Papasimakis, Nikitas Zheludev, Nikolay I. Shen, Yijie |
| contents | Axion electrodynamics extends Maxwell's theory by postulating a hypothetical pseudoscalar axion field sourced by a scalar product of electric and magnetic fields. In this work, we demonstrate that a superposition of toroidal electromagnetic pulses propagating in free space naturally exhibits localized regions, where $\bm{E}\cdot\bm{B}\ne0$. As a consequence of axion electrodynamics, these structured light pulses generate a space-time localized pseudoscalar field co-propagating with the pulses. This result should not be interpreted as a mechanism for generating axion particles by light, but rather as a consequence of adopting the axion electrodynamics extension to Maxwell's equations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_05791 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Scalar axion field of toroidal electromagnetic pulses Yu, Wangke Papasimakis, Nikitas Zheludev, Nikolay I. Shen, Yijie High Energy Physics - Phenomenology Classical Physics Optics Axion electrodynamics extends Maxwell's theory by postulating a hypothetical pseudoscalar axion field sourced by a scalar product of electric and magnetic fields. In this work, we demonstrate that a superposition of toroidal electromagnetic pulses propagating in free space naturally exhibits localized regions, where $\bm{E}\cdot\bm{B}\ne0$. As a consequence of axion electrodynamics, these structured light pulses generate a space-time localized pseudoscalar field co-propagating with the pulses. This result should not be interpreted as a mechanism for generating axion particles by light, but rather as a consequence of adopting the axion electrodynamics extension to Maxwell's equations. |
| title | Scalar axion field of toroidal electromagnetic pulses |
| topic | High Energy Physics - Phenomenology Classical Physics Optics |
| url | https://arxiv.org/abs/2604.05791 |