由QCD和电弱相变引起的宇宙学黑洞形成
Cosmological Black Hole Formation due to QCD and Electroweak Phase Transitions
摘要：
我们求解动力学运动方程，以确定早期宇宙中过密区域从过密区域的视界穿越到引力不稳定点塌缩成黑洞的条件。在这里，我们专注于QCD和电弱相变的敏感性。然后我们求解速率方程来确定当前宇宙中黑洞的质量分布。二阶相变或快速交叉只有在原始密度波动指数n > 1.25时才有显著的结果。然而，一阶跃迁将导致一个黑洞占主导地位的宇宙的任何现实值的n，包括n=1。
英文摘要：
We solve dynamical equations of motion to determine the conditions under which an over-dense region in the early universe will lead to collapse to a black hole, starting from horizon crossing of the over-dense region to the point of gravitational instability. Here we focus on the sensitivity to QCD and electroweak phase transitions. We then solve rate equations to determine the mass distribution of black holes in the present universe. A second order phase transition or rapid crossover would have significant consequences only if the index of primordial density fluctuations n > 1.25. However, a first order transition would lead to a black hole dominated universe for any realistic value of n including n=1.
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