De-excitation effects on entanglement in multi-nucleon transfer reactions
Fuente:
arXiv
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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866915934388617216 |
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| author | Yang, Y. C. Zhang, D. D. Vretenar, D. Li, B. Nikšić, T. Zhao, P. W. Meng, J. |
| author_facet | Yang, Y. C. Zhang, D. D. Vretenar, D. Li, B. Nikšić, T. Zhao, P. W. Meng, J. |
| contents | This study quantifies the impact of nuclear de-excitation on correlations in multi-nucleon transfer (MNT) reactions. To bridge the gap between initial collision dynamics and final experimental observables, we introduce a hybrid TDCDFT+GEMINI approach, integrating time-dependent covariant density functional theory (TDCDFT) with the statistical de-excitation model GEMINI++. Applied to the $^{40}$Ca + $^{208}$Pb reaction, our method demonstrates that the de-excitation is essential for reconciling theoretical cross sections with experimental data. Analysis of the cross-section Shannon entropy reveals that new reaction channels open abruptly at a specific energy threshold. By employing mutual information, we show that the de-excitation process significantly degrades the initial quantum entanglement between the projectile-like and the target-like fragments, revealing a key mechanism through which fundamental quantum correlations are lost. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_20535 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | De-excitation effects on entanglement in multi-nucleon transfer reactions Yang, Y. C. Zhang, D. D. Vretenar, D. Li, B. Nikšić, T. Zhao, P. W. Meng, J. Nuclear Theory This study quantifies the impact of nuclear de-excitation on correlations in multi-nucleon transfer (MNT) reactions. To bridge the gap between initial collision dynamics and final experimental observables, we introduce a hybrid TDCDFT+GEMINI approach, integrating time-dependent covariant density functional theory (TDCDFT) with the statistical de-excitation model GEMINI++. Applied to the $^{40}$Ca + $^{208}$Pb reaction, our method demonstrates that the de-excitation is essential for reconciling theoretical cross sections with experimental data. Analysis of the cross-section Shannon entropy reveals that new reaction channels open abruptly at a specific energy threshold. By employing mutual information, we show that the de-excitation process significantly degrades the initial quantum entanglement between the projectile-like and the target-like fragments, revealing a key mechanism through which fundamental quantum correlations are lost. |
| title | De-excitation effects on entanglement in multi-nucleon transfer reactions |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2601.20535 |