Theory of resonant x-ray scattering with ultrafast intense pulses
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866929475076227072 |
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| author | Venkatesh, Akilesh Ho, Phay J. |
| author_facet | Venkatesh, Akilesh Ho, Phay J. |
| contents | We present a time-dependent Schrödinger equation (TDSE) approach within a non-relativistic quantum electrodynamics (QED) framework to investigate resonant x-ray scattering under intense x-ray pulses. This method enables us to explore how coherent x-ray electron dynamics affect scattering signals from Ne$^+$. We account for both resonant fluorescence and elastic scattering channels, while also considering competing photoionization and inner-shell decay processes. By computing the angular distribution and energy spectrum of scattered photons, we uncover the interference effects between elastic scattering and resonant fluorescence pathways. Notably, our results reveal a small asymmetry in the energy spectrum as a result of this interference. We discuss the experimental potential for detecting signatures of interference. Our findings demonstrate that the x-ray Rabi dynamics can be used to control scattering responses and offer new insights into interference mechanisms and scattering efficiency in high-intensity x-ray regimes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_01962 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Theory of resonant x-ray scattering with ultrafast intense pulses Venkatesh, Akilesh Ho, Phay J. Atomic Physics Atomic and Molecular Clusters We present a time-dependent Schrödinger equation (TDSE) approach within a non-relativistic quantum electrodynamics (QED) framework to investigate resonant x-ray scattering under intense x-ray pulses. This method enables us to explore how coherent x-ray electron dynamics affect scattering signals from Ne$^+$. We account for both resonant fluorescence and elastic scattering channels, while also considering competing photoionization and inner-shell decay processes. By computing the angular distribution and energy spectrum of scattered photons, we uncover the interference effects between elastic scattering and resonant fluorescence pathways. Notably, our results reveal a small asymmetry in the energy spectrum as a result of this interference. We discuss the experimental potential for detecting signatures of interference. Our findings demonstrate that the x-ray Rabi dynamics can be used to control scattering responses and offer new insights into interference mechanisms and scattering efficiency in high-intensity x-ray regimes. |
| title | Theory of resonant x-ray scattering with ultrafast intense pulses |
| topic | Atomic Physics Atomic and Molecular Clusters |
| url | https://arxiv.org/abs/2406.01962 |