论文标题
宇宙学QCD相变产生的手推车熵和随机重力背景
Barrow entropy and stochastic gravitational wave background generated from cosmological QCD phase transition
论文作者
论文摘要
在这项工作中，我们研究了早期宇宙在巴罗熵框架中早期宇宙的F \/第一阶宇宙学QCD相变时产生的随机引力背景。我们f \/irst在痕量异常存在下的随机重力波背景频谱的表达中衍生出了巴罗校正。然后，通过考虑气泡壁的碰撞，声波和磁流失动力动力湍流作为随机重力波的来源，对巴罗熵对总能量密度的影响和随机重力波信号的峰信号进行了分析。最后，我们讨论了检测这些随机引力波信号的检测可能性。我们的结果表明，巴罗熵的作用在宇宙温度的时间演变中起着重要作用，这是哈勃参数的函数，这导致随机重力波的信号向较低的频率状态转移，从而使随机和即将发生的重力引力波动可能探测为探测的随机重力波的信号。
In this work we investigate the stochastic gravitational wave background generated during the f\/irst-order cosmological QCD phase transition of the early universe in the framework of the Barrow entropy. We f\/irst derived the Barrow corrections to the expression of stochastic gravitational wave background spectrum in presence of trace anomaly. Then, by taking account of Bubble wall collisions, sound waves and magnetohydrodynamic turbulence as the sources of stochastic gravitational wave, an analysis of the influence of Barrow entropy on the total energy density and the peak signal of stochastic gravitational wave signal is carried out. Finally, we discuss the possibility of detectors for the detection of these stochastic gravitational wave signals. Our results show that effect of Barrow entropy plays an important role in the temporal evolution of temperature of the universe as a function of the Hubble parameter, which leads to the signal of stochastic gravitational wave to shift towards the lower frequency regime, making the signal of stochastic gravitational wave possible to be probed by relevant ongoing and upcoming gravitational waves experiments.
