Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2311.03677 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866909127582679040 |
|---|---|
| author | Bondy, A. T. Saha, S. del Valle, J. C. Harth, A. Douguet, N. Hamilton, K. R. Bartschat, K. |
| author_facet | Bondy, A. T. Saha, S. del Valle, J. C. Harth, A. Douguet, N. Hamilton, K. R. Bartschat, K. |
| contents | We report a detailed study of high-order harmonic generation (HHG) in helium. When comparing predictions from a single-active-electron model with those from all-electron simulations, such as ATTOMESA and R-matrix with time-dependence, which can include different numbers of states in the close-coupling expansion, it seems imperative to generate absolute numbers for the HHG spectrum in a well-defined framework. While qualitative agreement in the overall frequency dependence of the spectrum, including the cut-off frequency predicted by a semi-classical model, can be achieved by many models in arbitrary units, only absolute numbers can be used for benchmark comparisons between different approaches. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_03677 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | High-Order Harmonic Generation in Helium: A Comparison Study Bondy, A. T. Saha, S. del Valle, J. C. Harth, A. Douguet, N. Hamilton, K. R. Bartschat, K. Atomic Physics Computational Physics We report a detailed study of high-order harmonic generation (HHG) in helium. When comparing predictions from a single-active-electron model with those from all-electron simulations, such as ATTOMESA and R-matrix with time-dependence, which can include different numbers of states in the close-coupling expansion, it seems imperative to generate absolute numbers for the HHG spectrum in a well-defined framework. While qualitative agreement in the overall frequency dependence of the spectrum, including the cut-off frequency predicted by a semi-classical model, can be achieved by many models in arbitrary units, only absolute numbers can be used for benchmark comparisons between different approaches. |
| title | High-Order Harmonic Generation in Helium: A Comparison Study |
| topic | Atomic Physics Computational Physics |
| url | https://arxiv.org/abs/2311.03677 |