Einstein-Yang-Mills理论中的辐射黑洞与宇宙监督
Radiating black holes in Einstein-Yang-Mills theory and cosmic censorship
摘要：
利用Wu-Yang \textit{ansatz}，得到了具有Yang-Mills规范荷的零尘埃的高维Einstein-Yang-Mills方程的非静态球对称黑洞解，即HD-EYM Vaidya解.有趣的是，YM规范荷的引力贡献与麦克斯韦荷的引力贡献相反（吸引而不是排斥）。结果表明，具有YM规范荷的零尘埃的引力坍缩存在强曲率壳层，它聚焦了违反宇宙监督的裸奇点。然而，由于YM规范荷的存在，HD-Vaidya坍缩的裸奇点的初始数据空间有显着的收缩。文中还讨论了YM规范装药对视视界和事件视界的结构和位置的影响。
英文摘要：
Exact nonstatic spherically symmetric black-hole solution of the higher dimensional Einstein-Yang-Mills equations for a null dust with Yang-Mills gauge charge are obtained by employing Wu-Yang \textit{ansatz}, namely, HD-EYM Vaidya solution. It is interesting to note that gravitational contribution of YM gauge charge for this ansatz is indeed opposite (attractive rather than repulsive) that of Maxwell charge. It turns out that the gravitational collapse of null dust with YM gauge charge admit strong curvature shell focusing naked singularities violating cosmic censorship. However, there is significant shrinkage of the initial data space for a naked singularity of the HD-Vaidya collapse due to presence of YM gauge charge. The effect of YM gauge charge on structure and location of the apparent and event horizons is also discussed.
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