论文标题
经典的质量通胀与半经典内部地平线通胀
Classical mass inflation vs semiclassical inner horizon inflation
论文作者
论文摘要
我们分析了一个球形对称的黑洞的几何形状，其内部和外部明显的地平线受到物质球形无效壳的干扰。在经典的水平上，我们观察到质量通胀不稳定性是触发的，从而导致曲率的生长和内部视野的内向位移。我们详细研究了质量膨胀区域的内部结构，并将其与扰动物质含量具有连续分布的情况下获得的先前结果进行了比较。然后，我们对内部地平线附近的量子场的重量化应力能量张量进行了近似计算，并分析了几何区域的半经典反应。我们发现，由于质量通货膨胀而导致该视野向内移动的经典趋势受到挑战，并有可能通过半经典倾向来使其向外膨胀。
We analyse the geometry of a spherically symmetric black hole with an inner and outer apparent horizon which is perturbed by spherical null shells of matter. On a classical level we observe that the mass inflation instability is triggered, resulting in a growth of curvature and an inward displacement of the inner horizon. We study in detail the inner structure of the mass-inflated region and compare it with previous results obtained for the case in which the perturbing matter content has a continuous distribution. We then perform an approximate calculation of the renormalised stress-energy tensor of a quantum field in the vicinity of the inner horizon, and analyse the semiclassical backreaction on this region of the geometry. We find that the classical tendency for this horizon to move inward due to mass inflation is challenged and potentially overcome by a semiclassical tendency for it to inflate outward.
