Non-perturbative calculations of nuclear matter using in-medium similarity renormalization group
The non-perturbative 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 N2LO and N3LO. Results from the many-body perturbation theory at d...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269325001108 |
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| author | Xin Zhen Rongzhe Hu Haoyu Shang Jiawei Chen J.C. Pei F.R. Xu |
| author_facet | Xin Zhen Rongzhe Hu Haoyu Shang Jiawei Chen J.C. Pei F.R. Xu |
| author_sort | Xin Zhen |
| collection | DOAJ |
| description | The non-perturbative 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 N2LO and N3LO. 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 | Article |
| id | doaj-art-abbe49283e4c4669aece23ae9b08d86d |
| institution | DOAJ |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-abbe49283e4c4669aece23ae9b08d86d2025-08-20T03:05:55ZengElsevierPhysics Letters B0370-26932025-03-0186213935010.1016/j.physletb.2025.139350Non-perturbative calculations of nuclear matter using in-medium similarity renormalization groupXin Zhen0Rongzhe Hu1Haoyu Shang2Jiawei Chen3J.C. Pei4F.R. Xu5State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, ChinaState Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, ChinaState Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, ChinaState Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, ChinaState Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China; Southern Center for Nuclear-Science Theory (SCNT), Institute of Modern Physics, Chinese Academy of Sciences, Huizhou 516000, China; Corresponding author.State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China; Southern Center for Nuclear-Science Theory (SCNT), Institute of Modern Physics, Chinese Academy of Sciences, Huizhou 516000, ChinaThe non-perturbative 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 N2LO and N3LO. 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.http://www.sciencedirect.com/science/article/pii/S0370269325001108 |
| spellingShingle | Xin Zhen Rongzhe Hu Haoyu Shang Jiawei Chen J.C. Pei F.R. Xu Non-perturbative calculations of nuclear matter using in-medium similarity renormalization group Physics Letters B |
| title | Non-perturbative calculations of nuclear matter using in-medium similarity renormalization group |
| title_full | Non-perturbative calculations of nuclear matter using in-medium similarity renormalization group |
| title_fullStr | Non-perturbative calculations of nuclear matter using in-medium similarity renormalization group |
| title_full_unstemmed | Non-perturbative calculations of nuclear matter using in-medium similarity renormalization group |
| title_short | Non-perturbative calculations of nuclear matter using in-medium similarity renormalization group |
| title_sort | non perturbative calculations of nuclear matter using in medium similarity renormalization group |
| url | http://www.sciencedirect.com/science/article/pii/S0370269325001108 |
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