宇宙子块与无视界黑洞
Cosmon Lumps and Horizonless Black Holes
摘要:
本文研究了经典场与爱因斯坦引力耦合系统的非线性球对称解。在标量势存在的情况下,我们发现,对于外部观察者来说,正则解非常类似于史瓦西黑洞。然而,这些宇宙子块既没有视界,也没有中心奇点。稳定性分析表明,我们的静态解决方案是动态不稳定的。是否存在类似的稳定解仍然是一个悬而未决的问题。
英文摘要:
We investigate non-linear, spherically symmetric solutions to the coupled system of a quintessence field and Einstein gravity. In the presence of a scalar potential, we find regular solutions that to an outside observer very closely resemble Schwarzschild black holes. However, these cosmon lumps have neither a horizon nor a central singularity. A stability analysis reveals that our static solutions are dynamically unstable. It remains an open question whether analogous stable solutions exist.
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