论文标题
从全息图有限耦合时的一阶QCD相变的重力波
Gravitational waves of a first-order QCD phase transition at finite coupling from holography
论文作者
论文摘要
我们考虑了一项全息研究，该研究是在有限的重化化学势下由宇宙一阶QCD相变产生的耦合依赖性引力波。在双重描述中，一阶QCD相变于高斯 - 骨网重力中的一阶鹰相变。在中间耦合时，我们获得了表征重力波能密度光谱的关键量。然后，我们发现可以检测到重力波以进行足够大的高斯桥耦合，而声波在光谱中起着重要作用。我们还考虑了QCD相变期间的超冷场场景，并表明可以通过脉冲星定时阵列实验检测到在此期间产生的重力波。
We consider a holographic study of coupling dependent gravitational waves produced by the cosmic first order QCD phase transition at finite baryochemical potential. In the dual description, the first-order QCD phase transition corresponds to the first-order Hawking-Page phase transition in Gauss-Bonnet gravity. At intermediate coupling, we obtain key quantities characterizing the gravitational wave energy density spectrum. We then find that the gravitational waves might be detected for sufficiently large Gauss-Bonnet coupling, while sound waves play an important role in the spectrum. We also consider a supercooling scenario during the QCD phase transition and show that the gravitational waves generated during this period can be detected by pulsar timing array experiments.
