论文标题
探测QCD临界点和黑洞物理引起的重力波
Probing QCD critical point and induced gravitational wave by black hole physics
论文作者
论文摘要
定位QCD的临界端点和在有限的重子化学电位上的一阶相变的区域是QCD物质的活跃研究区域。我们使用仪表/重力双重性的非扰动方法在有限的重子化学势和有限温度下提供了QCD物质的重力双重描述。在使用最先进的晶格QCD数据固定所有模型参数之后，状态和QCD痕量异常关系的预测方程与最新的晶格结果定量一致。然后，我们给出临界端点的确切位置以及一阶过渡线，这在许多即将进行的实验测量的覆盖范围内。此外，使用我们在有限的巴属化学电位上的模型中的数据，我们计算了与早期宇宙中一阶QCD跃迁相关的随机重力波背景的频谱，将来可以通过PULSAR时机观察到。
Locating the critical endpoint of QCD and the region of a first-order phase transition at finite baryon chemical potential is an active research area for QCD matter. We provide a gravitational dual description of QCD matter at finite baryon chemical potential and finite temperature using the non-perturbative approach from gauge/gravity duality. After fixing all model parameters using state-of-the-art lattice QCD data at zero chemical potential, the predicted equations of state and QCD trace anomaly relation are in quantitative agreement with the latest lattice results. We then give the exact location of the critical endpoint as well as the first-order transition line, which is within the coverage of many upcoming experimental measurements. Moreover, using the data from our model at finite baryon chemical potential, we calculate the spectrum of the stochastic gravitational wave background associated with the first-order QCD transition in the early universe, which could be observable via pulsar timing in the future.
