The equation of state of neutron matter, symmetry energy and neutron star structure
The equation of state of neutron matter, symmetry energy and neutron star structure
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DOI：
10.1140/epja/i2014-14010-5
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发表时间：
2013-07
期刊：
影响因子：
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通讯作者：
S. Gandolfi;J. Carlson;S. Reddy;A. Steiner;R. Wiringa
中科院分区：
文献类型：
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作者：
S. Gandolfi;J. Carlson;S. Reddy;A. Steiner;R. Wiringa
回顾了量子蒙特卡罗（QMC）方法计算纯中子物质物态方程的研究进展。QMC算法允许在非微扰框架中使用现实的二体和三体力来研究多体核系统。我们给出了中子物质状态方程的结果，并着重讨论了三中子力在超核密度下的作用。讨论了对称能、中子星星半径和对称能之间的关系。我们还结合联合收割机和理论模型的三核子相互作用，和最近的中子星星的观测约束的对称性能量的值和它的密度依赖性。
We review the calculation of the equation of state of pure neutron matter using quantum Monte Carlo (QMC) methods. QMC algorithms permit the study of many-body nuclear systems using realistic two- and three-body forces in a non-perturbative framework. We present the results for the equation of state of neutron matter, and focus on the role of three-neutron forces at supranuclear density. We discuss the correlation between the symmetry energy, the neutron star radius and the symmetry energy. We also combine QMC and theoretical models of the three-nucleon interactions, and recent neutron star observations to constrain the value of the symmetry energy and its density dependence.