作为孤子黑洞残余的半经典几何子
Semiclassical geons as solitonic black hole remnants
摘要：
我们发现，黑洞蒸发的终态可以用非奇异的、没有事件视界的、质量为普朗克尺度量级的、最多可达16个电荷单位的稳定孤子残余来表示.虽然这些物体在局部上与球对称的大质量电荷（或磁荷）无法区分，但它们原来是无源的，含有由电磁场产生的虫洞。我们的结果是通过解释半经典修正爱因斯坦的理论在一阶（Palatini）形式主义，产生二阶方程，并避免了通常的（度量）制定二次引力的不稳定性。我们还讨论了这些解决方案的原始黑洞和暗物质问题的潜在相关性。
英文摘要：
We find that the end state of black hole evaporation could be represented by non-singular and without event horizon stable solitonic remnants with masses of the order the Planck scale and up to 16 units of charge. Though these objects are locally indistinguishable from spherically symmetric, massive electric (or magnetic) charges, they turn out to be sourceless geons containing a wormhole generated by the electromagnetic field. Our results are obtained by interpreting semiclassical corrections to Einstein's theory in the first-order (Palatini) formalism, which yields second-order equations and avoids the instabilities of the usual (metric) formulation of quadratic gravity. We also discuss the potential relevance of these solutions for primordial black holes and the dark matter problem.
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