论文标题
具有向量相互作用的状态的非扰动夸克物质方程
Nonperturbative quark matter equations of state with vector interactions
论文作者
论文摘要
在Quark-Meson模型截断中使用功能重归其化组（FRG）构建了两种和三种夸克风味的状态（EOSS）的非扰动方程（EOSS）。基于先前没有排斥媒介介子相互作用的FRG研究，研究研究了等视载体$ω$ - 和$ ϕ $ -Mesons对夸克和（伪）标量介子的动态波动的影响。评估了巨大的电位和媒介膜冷凝水，这是夸克化学势的函数，夸克物质EOS中的$β$平衡中的Quark Matter EOS应用于中子星（NS）物理学。比较了不同矢量耦合的杂种恒星的潮汐变形性和质量 - 拉迪乌斯关系。我们观察到矢量介子对夸克物质EOS的显着影响，因此所得的EOS足够僵硬，可以支撑两极质量的中子星。
Nonperturbative equations of state (EoSs) for two and three quark flavors are constructed with the functional renormalization group (FRG) within a quark-meson model truncation augmented by vector mesons for low temperature and high density. Based on previous FRG studies without repulsive vector meson interactions the influence of isoscalar vector $ω$- and $ϕ$-mesons on the dynamical fluctuations of quarks and (pseudo)scalar mesons is investigated. The grand potential as well as vector meson condensates are evaluated as a function of quark chemical potential and the quark matter EoS in $β$-equilibrium is applied to neutron star (NS) physics. The tidal deformability and mass-radius relations for hybrid stars from combined hadronic and quark matter EoSs are compared for different vector couplings. We observe a significant impact of the vector mesons on the quark matter EoS such that the resulting EoS is sufficiently stiff to support two-solar-mass neutron stars.
