论文标题
中子星的状态和声音速度的QCD方程
QCD equations of state and speed of sound in neutron stars
论文作者
论文摘要
中子星是研究量子染色体动力学（QCD）中密集物质的宇宙实验室。中子星的可观察到的质量 - 拉迪乌斯关系由状态的QCD方程确定，并且可以反映QCD相变的特性。在过去的十年中，在中子恒星，两 - 极质量中子星和中子星的合并事件的发现中存在历史发现，这些发现对状态方程施加了严格的约束。虽然构建了许多状态方程来满足这些约束，但理论上的挑战是如何将这些构建体与强子物理学和中等计算中预期的微物理学调和。在这篇简短的文章中，我们简要介绍了最近的观察结果，并讨论了它们对密集QCD物质的含义，指的是在低密度和高密度限制，类似QCD的理论以及Baryon-Baryon相互作用的QCD约束中。
Neutron stars are cosmic laboratories to study dense matter in Quantum Chromodynamics (QCD). The observable mass-radius relations of neutron stars are determined by QCD equations of state, and can reflect the properties of QCD phase transitions. In the last decade there have been historical discoveries in neutron stars, the discoveries of two-solar mass neutron stars and neutron star merger events, which have imposed tight constraints on equations of state. While a number of equations of state are constructed to satisfy these constraints, a theoretical challenge is how to reconcile those constructions with the microphysics expected from the hadron physics and in-medium calculations. In this short article we briefly go over recent observations and discuss their implications for dense QCD matter, referring to QCD constraints in the low and high density limits, QCD-like theories, and lattice QCD results for baryon-baryon interactions.
