论文标题
温度对从手学有效场理论获得的状态的中子物质方程的影响
Temperature effects on the neutron matter equation of state obtained from chiral effective field theory
论文作者
论文摘要
在手性有效野外理论的框架中研究了对状态中子物质方程的温度影响。最新的，最先进的手性两核子力在手性膨胀中从第三到第五阶与手性的三核力量一起应用，从而确定理论预测的截断误差。所考虑的热力学量包括化学电位，内部能量，熵和自由能。通常，观察到所有预测的良好逐阶收敛。如预期的那样，在低密度下，温度影响最大。手性三核力力的温度依赖性被证明是弱的。
Temperature effects on the neutron matter equation of state are investigated in the framework of chiral effective field theory. Latest, state-of-the-art chiral two-nucleon forces are applied from third to fifth order in the chiral expansion together with chiral three-nucleon forces, allowing for a determination of the truncation error of the theoretical predictions. The thermodynamic quantities considered include the chemical potential, the internal energy, the entropy, and the free energy. In general, good order-by-order convergence of all predictions is observed. As to be expected, temperature effects are largest at low density. The temperature dependence of the chiral three-nucleon force turns out to be weak.
