论文标题
一类新的混合EOS，具有多个关键端点，用于模拟超新星，中子星及其合并
A new class of hybrid EoS with multiple critical endpoints for simulations of supernovae, neutron stars and their mergers
论文作者
论文摘要
我们介绍了一个杂交中子星（NS）的状态方程（EOS）家族，该物质是通过低密度下的柔软的HADRONIC EOS与刚性Quark物质EOS与具有颜色超导率的僵硬的Quark物质EOS在高密度区域内的颜色超导率$ unionic Chementitys $ __b^h <<<<gul。我们考虑两种情况，与在有限温度和零温度下考虑的夸克和强子相之间的跨越和强大的一阶转变。这使我们能够分析有限熵对NS的EOS和质量 - 拉迪乌斯关系的影响。我们证明，夸克物质的颜色超导状态的形成在熵保护条件下驱动了超新星爆炸中物质的演变，而不是在正常夸克物质上脱解。在提出的混合EOS方案中，超新星和NS合并可以访问QCD相图的区域，这些区域也可以在具有相对论重离子碰撞的地面实验中达到。
We introduce a family of equations of state (EoS) for hybrid neutron star (NS) matter that is obtained by a two-zone parabolic interpolation between a soft hadronic EoS at low densities and a stiff quark matter EoS with color superconductivity at high densities within a finite region of baryonic chemical potentials $μ_B^h < μ_B < μ_B^q$. We consider two scenarios corresponding to a cross-over and a strong first-order transition between quark and hadron phases considered at finite and zero temperatures. This allows us to analyze the effects of finite entropy on the EoS and mass-radius relation of NS. We demonstrate that the formation of a color superconducting state of quark matter drives the evolution of matter in supernovae explosions under the condition of entropy conservation to higher temperatures than in the case of deconfinement to normal quark matter. Within the presented hybrid EoS scenario, regions of the QCD phase diagram may be accessible to supernovae and NS mergers that can be reached also in terrestrial experiments with relativistic heavy ion collisions.
