Non-perturbative calculations of nuclear matter using in-medium similarity renormalization group
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866917936162144256 |
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| author | Zhen, Xin Hu, Rongzhe Shang, Haoyu Chen, Jiawei Pei, Junchen Xu, Furong |
| author_facet | Zhen, Xin Hu, Rongzhe Shang, Haoyu Chen, Jiawei Pei, Junchen Xu, Furong |
| contents | The non-perturbative {\it ab initio} calculations of infinite nuclear matter using In-Medium Similarity Renormalization Group (IMSRG) method is developed in this work, which enables calculations with chiral two and three-nucleon forces at N$^2$LO and N$^3$LO. Results from the many-body perturbation theory at different orders and coupled-cluster theory are also presented for comparison. It is shown that different many-body approaches lead to obvious discrepancies with a harder nuclear interaction for both pure neutron matter and symmetric nuclear matter. This work provides a novel alternative infrastructure for future studies of dense nuclear matter and strongly-correlated many-body systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_02479 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Non-perturbative calculations of nuclear matter using in-medium similarity renormalization group Zhen, Xin Hu, Rongzhe Shang, Haoyu Chen, Jiawei Pei, Junchen Xu, Furong Nuclear Theory The non-perturbative {\it ab initio} calculations of infinite nuclear matter using In-Medium Similarity Renormalization Group (IMSRG) method is developed in this work, which enables calculations with chiral two and three-nucleon forces at N$^2$LO and N$^3$LO. Results from the many-body perturbation theory at different orders and coupled-cluster theory are also presented for comparison. It is shown that different many-body approaches lead to obvious discrepancies with a harder nuclear interaction for both pure neutron matter and symmetric nuclear matter. This work provides a novel alternative infrastructure for future studies of dense nuclear matter and strongly-correlated many-body systems. |
| title | Non-perturbative calculations of nuclear matter using in-medium similarity renormalization group |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2501.02479 |