论文标题
涉及超新星和中子星合并模拟的Antikaon的Bose-Einstein冷凝物的新状态方程
New equation of state involving Bose-Einstein condensate of antikaon for supernova and neutron star merger simulations
论文作者
论文摘要
我们计算了一个新的状态表方程，包括$ k^{ - } $梅森的Bose-Einstein冷凝物，用于核心倒塌超新星和中子星星合并模拟。在核统计平衡模型的扩展版本中描述了不一致物质中的核和相互作用的核子，包括排除的体积效应，而在相对论的强子场理论中，较高密度的均匀物质与密度相关的耦合进行了处理。状态表的方程是针对广泛的密度（$ 10^{ - 12} $至$ \ sim 1 $ fm $^{ - 3} $），正电荷分数（0.01至0.60）和温度（0.1至158.48 MEV）生成的。研究了对不同热力学量的抗ki污冷凝物的影响，例如每个重子的自由能，每个巴里昂熵，压力以及物质的组成。此外，在本文中还研究了抗ki谐凝结和物质相图的临界温度。
We compute a new equation of state table including Bose-Einstein condensate of $K^{-}$ mesons for core collapse supernova and neutron star merger simulations. Nuclei and interacting nucleons in non-uniform matter is described in an extended version of the nuclear statistical equilibrium model including excluded volume effects whereas the uniform matter at higher densities is treated in the relativistic hadron field theory with density dependent couplings. The equation of state table is generated for a wide range of density ($10^{-12}$ to $\sim 1$ fm$^{-3}$), positive charge fraction (0.01 to 0.60) and temperature (0.1 to 158.48 MeV). The impact of antikaon condensate is investigated on different thermodynamic quantities for example free energy per baryon, entropy per baryon, pressure as well as compositions of matter. Furthermore, critical temperatures of antikaon condensation and the phase diagram of matter are also studied in this article.
