近几十年来人们对于黑洞物理广泛的研究给我们带来了很多有趣的事实和谜题。通过使用弦理论和AdS/CFT对偶的技术，人们对于重塑黑洞熵的问题有了很大的进展。在我们最近的工作里，通过研究一大类黑洞解——我们称其为“濒消失视界”（或EVH）黑洞，我们引入了一种有力的方法来回答一些关于黑洞的运动学和动力学问题，如黑洞微观态数和黑洞辐射过程中的一些问题。这种方法基于二维共形场论和引力理论中EVH黑洞／黑环／黑膜解之间的一种对偶。渐进对称群（BMS群）是另一种研究黑洞问题——特别是信息疑难——的新方法，它在近几年被广泛低研究。人们论证了，在任何渐进平直引力理论中，BMS对称性都可以给出无限多个守恒荷。所以黑洞可以携带数量很多的“软毛发”，黑洞量子态的完整信息均被储存在渐进边界上。这给出了理解黑洞信息疑难和黑洞熵问题的另一种框架。

The extensive research on black hole physics gave rise to many interesting facts and puzzles in the last few decades. A considerable progress in reproducing black hole entropy has been made using string theory techniques and AdS/CFT...In our recent works, by studying a large class of black hole solutions which we call them Extremal-Vanishing-Horizon (or EVH for shot) black holes, we introduce a powerful approach to answer some questions in kinematical and dynamical aspects of black holes dynamics, from counting micro-states to studying black hole radiation. This method is based on a duality between gravity solution of EVH black hole/ring/branes physics and a 2-dim conformal field theory...Another new approach to study black hole problems and in particular information puzzle is using asymptotic symmetry group (BMS) and has been studied extensively in recent years. It has been shown that BMS symmetries can imply an infinite number of conserved charges for all gravitational theories in asymptotically flat space-times. Therefore black holes can carry a large amount of soft hair and the complete information about the black hole quantum state is stored at the asymptotic boundary. This gives a framework to understand black hole information paradox and black hole entropy problem.