论文标题
部分可观测时空混沌系统的无模型预测
A connection between regular black holes and horizonless ultracompact stars
论文作者
论文摘要
我们说明，普通的黑洞和无地平线的恒星（通常被认为是黑洞模仿的家族很独特）是密切交织在一起的。我们表明，在轻度的引力能（misner-sharp quasi-local质量）的轻度条件下，任何球形对称的常规黑洞都可以连续变形为无态恒星，后者与后者与arnowitt-deser-misner（AMP）质量之间假定的线性关系。我们通过考虑海沃德提出的几何形状家族作为常规黑洞的描述来说明这一总体结果，我们还描述了相应的无恒星的特性。相关的有效应力能量张量的形式表明，这些无层的恒星可以识别为具有柔软表面和内部/外光环的各向异性恒星。我们还构建了动态几何形状，可以描述常规黑洞向无线恒星的演变，并表明半经典物理包含必要的成分，以触发这种动态演化的早期阶段。
We illustrate that regular black holes and horizonless stars, typically considered as quite distinct families of black hole mimickers, are intimately intertwined. We show that any spherically symmetric regular black hole can be continuously deformed into a horizonless star under the mild conditions of non-negativity of gravitational energy (Misner--Sharp quasi-local mass), and an assumed linear relation between the latter and the Arnowitt--Deser--Misner (ADM) mass. We illustrate this general result by considering the family of geometries proposed by Hayward as the description of regular black holes, and we also describe the properties of the corresponding horizonless stars. The form of the associated effective stress-energy tensor shows that these horizonless stars can be identified as anisotropic gravastars with a soft surface and inner/outer light rings. We also construct dynamical geometries that could describe the evolution of regular black holes towards horizonless stars, and show that semiclassical physics contains the necessary ingredients to trigger the early stages of such dynamical evolution.
