2016 Fiscal Year Final Research Report
The equation of state of neutron rich dilute nuclear matter investigated by ultracold atomic gases
| Project Area | Nuclear matter in neutron stars investigated by experiments and astronomical observations |
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| Project/Area Number |
24105006
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
中務 孝 筑波大学, 数理物質科学研究科(系), 教授 (40333786)
向山 敬 電気通信大学, レーザー新世代研究センター, 准教授 (70376490)
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| Co-Investigator(Renkei-kenkyūsha) |
Midushima Takeshi 岡山大学, 基礎工学研究科, 准教授 (50379707)
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| Project Period (FY) |
2012-06-28 – 2017-03-31
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| Keywords | 冷却原子 / フェルミ超流動 / 中性子物質 / 中性子星 |
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| Outline of Final Research Achievements |
Unlike the Earth, neutron stars seem to be huge quantum stars consisting mainly of superfluid neutrons. In the inner crust region where the density is sufficiently smaller than the nuclear density, neutron matter may show physical properties similar to ultracold atomic Fermi gases realized by laser cooling. We report on quantum simulation of pure neutron matter by using such atomic gases for the purpose of understanding the fundamental physical properties of dilute neutron-rich nuclear matter. As a main result, the thermodynamic properties, the short-range particle correlation, and the equation-of-state (EOS) of dilute pure neutron matter were determined. We also established a method to calculate the inner crust structure of neutron stars in order to obtain EOS of neutron star matter by using the EOS of pure neutron matter.
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| Free Research Field |
原子物理
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