论文标题
早期对中子星中渐近颜色的夸克物质的渐近颜色刺激物质
Early deconfinement of asymptotically conformal color-superconducting quark matter in neutron stars
论文作者
论文摘要
我们提出了一种相对论的密度功能方法，用于彩色超导夸克物质，即通过在狭窄区域的准颗粒自身自身自身的快速生长模仿夸克限制。该方法显示出与中等依赖耦合的夸克物质的手性模型相等。虽然该模型的（伪）标量扇区拟合到量子染色体动力学的真空现象学上，但矢量和diquark通道中相互作用的强度有所不同，以便提供与质量 - 拉迪斯关系的观察性约束和与我们的方法模型的质量 - 拉迪斯关系和潮汐变形。为了在渐近高的密度下恢复夸克物质的共形性行为，我们引入了由非扰动gluon交换动机的向量和diquark耦合的中等依赖性。我们的分析信号表明，在质量低于1.0 $ m_ \ odot $的中子星中，对颜色超导夸克物质的变形发作可能会发生。
We present a relativistic density functional approach to color superconducting quark matter that mimics quark confinement by a fast growth of the quasiparticle selfenergy in the confining region. The approach is shown to be equivalent to a chiral model of quark matter with medium dependent couplings. While the (pseudo)scalar sector of the model is fitted to the vacuum phenomenology of quantum chromodynamics, the strength of interaction in the vector and diquark channels is varied in order to provide the best agreement with the observational constraints on the mass-radius relation and tidal deformability of neutron stars modelled with our approach. In order to recover the conformal behavior of quark matter at asymptotically high densities we introduce a medium dependence of the vector and diquark couplings motivated by the nonperturbative gluon exchange. Our analysis signals that the onset of deconfinement to color superconducting quark matter is likely to occur in neutron stars with masses below 1.0 $M_\odot$.
