论文标题
全息夸克与颜色超导性和紧凑型星的状态刚性方程式
Holographic quark matter with colour superconductivity and a stiff equation of state for compact stars
论文作者
论文摘要
我们提出了QCD的全息模型，具有一阶手性恢复相变，具有化学势，MU。一阶行为遵循允许在双重描述中的不连续性，因为夸克在其组成质量下方集成在一起。该模型预测，在中间密度（350 MeV <mu <500 meV）处，核密度阶段的变形且巨大的夸克相位，其状态非常僵硬，声音速度非常紧密。我们还包括在手性恢复的真空中对颜色超导冷凝物的全息描述，并研究了结果状态方程。他们提供了一个表现良好的一阶从非常高的密度（MU> 500 MEV）的质量夸克相的一阶过渡。我们用所得状态方程求解Tolman-Oppenheimer-Volkoff方程，并找到具有夸克核的稳定混合恒星。我们计算这些杂种恒星的潮汐变形性，并表明它们与中子星碰撞上的Ligo/piro数据一致。我们的全息模型表明，这种紧凑型恒星的核心可能存在夸克物质。
We present a holographic model of QCD with a first order chiral restoration phase transition with chemical potential, mu. The first order behaviour follows from allowing a discontinuity in the dual description as the quarks are integrated out below their constituent mass. The model predicts a deconfined yet massive quark phase at intermediate densities (350 MeV< mu <500 MeV), above the nuclear density phase, which has a very stiff equation of state and a speed of sound close to one. We also include a holographic description of a colour superconducting condensate in the chirally restored vacuum and study the resulting equation of state. They provides a well behaved first order transition from the deconfined massive quark phase at very high density (mu>500 MeV). We solve the Tolman-Oppenheimer-Volkoff equations with the resulting equations of state and find stable hybrid stars with quark cores. We compute the tidal deformability for these hybrid stars and show they are consistent with LIGO/Virgo data on a neutron star collision. Our holographic model shows that quark matter could be present at the core of such compact stars.
