Tunneling between Schwarzschild–de Sitter vacua
Tunneling between Schwarzschild–de Sitter vacua
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史瓦西与德西特真空之间的隧道
DOI：
10.1103/physrevd.100.125013
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发表时间：
2019
影响因子：
5
通讯作者：
Klaountia Pasmatsiou
中科院分区：
文献类型：
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作者：
Klaountia Pasmatsiou
我们研究了静态原初黑洞对真空衰变的影响。特别是，我们比较了不同值的宇宙常数和黑洞质量的真空之间的隧穿率指出的主导过程的基础上的薄壁瞬子的数值检验。考虑了三种不同的情况，即真真空气泡在假真空中的成核、假真空气泡在真真空中的成核以及Farhi-Guth-Guven机制。为了增加进入膨胀区域的跃迁速率，我们发现不仅需要包含黑洞，而且还需要在初始阶段包含宇宙学常数。在研究的所有情况下，我们表明，最有可能的情况是在最后阶段消除不均匀性。
We examine the effect of static primordial black holes on vacuum decay. In particular, we compare the tunneling rates between vacua of different values of the cosmological constant and black hole mass by pointing out the dominant processes based on a numerical examination of the thin wall instanton. Three distinct cases are considered, namely the nucleation of a true vacuum bubble into the false vacuum, the nucleation of a false vacuum bubble into the true vacuum as well as the Farhi-Guth-Guven mechanism. In order to increase the transition rate into an inflating region, we find that not only is the inclusion of a black hole necessary, but the inclusion of a cosmological constant in the initial phase is also required. In all cases studied, we show that the most likely scenario is the elimination of inhomogeneities in the final phase.