$\textit{Ab initio}$ Exact Calculation of Strongly-Correlated Nucleonic Matter
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866914297042436096 |
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| author | Hu, Rongzhe Jin, Shaoliang Zhen, Xin Shang, Haoyu Pei, Junchen Xu, Furong Marino, Francesco |
| author_facet | Hu, Rongzhe Jin, Shaoliang Zhen, Xin Shang, Haoyu Pei, Junchen Xu, Furong Marino, Francesco |
| contents | Dense nucleonic matter is of vital importance for understanding compact stars and inferring the transition into deconfined quark phase. We present $\textit{ab initio}$ exact calculations of infinite nucleonic matter with the state-of-the-art full configuration-interaction quantum Monte Carlo (FCIQMC) method, enabling us to rigorously benchmark many-body methods and assess the degree to which the nucleonic matter is correlated. This method has been numerically validated by exact diagonalization within a small model space. Calculations of nucleonic matter using chiral nuclear forces reveal that symmetric nuclear matter is strikingly strongly correlated, raising questions on previous $\textit{ab initio}$ calculations of nuclear matter with many-body expansion truncations and offering insights into simultaneous descriptions of finite nuclei and infinite nucleonic matter from first principles. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2508_09252 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | $\textit{Ab initio}$ Exact Calculation of Strongly-Correlated Nucleonic Matter Hu, Rongzhe Jin, Shaoliang Zhen, Xin Shang, Haoyu Pei, Junchen Xu, Furong Marino, Francesco Nuclear Theory High Energy Astrophysical Phenomena Nuclear Experiment Dense nucleonic matter is of vital importance for understanding compact stars and inferring the transition into deconfined quark phase. We present $\textit{ab initio}$ exact calculations of infinite nucleonic matter with the state-of-the-art full configuration-interaction quantum Monte Carlo (FCIQMC) method, enabling us to rigorously benchmark many-body methods and assess the degree to which the nucleonic matter is correlated. This method has been numerically validated by exact diagonalization within a small model space. Calculations of nucleonic matter using chiral nuclear forces reveal that symmetric nuclear matter is strikingly strongly correlated, raising questions on previous $\textit{ab initio}$ calculations of nuclear matter with many-body expansion truncations and offering insights into simultaneous descriptions of finite nuclei and infinite nucleonic matter from first principles. |
| title | $\textit{Ab initio}$ Exact Calculation of Strongly-Correlated Nucleonic Matter |
| topic | Nuclear Theory High Energy Astrophysical Phenomena Nuclear Experiment |
| url | https://arxiv.org/abs/2508.09252 |