Application of string theory to black hole physics and cosmology

在过去的几年里，弦理论在某些超对称黑洞的微观理论以及扩展的超对称量子场理论中产生了重要的新见解。此外，引力和量子场论往往是对同一动力学的互补描述，这一点已经变得显而易见。这里描述的研究项目的目的是调查这些结果可以在多大程度上扩展到更现实的、非超对称系统，如非极端黑洞。另一方面，我们建议研究最近提出的具有大额外维度的弦紧致的宇宙学含义。特别是，将分析薄膜激发的宇宙学中发生暴涨的替代方案。

In the last few years string theory has led to important new insights in the microscopic theory of certain supersymmetric black holes as well as quantum field theory with extended supersymmetry. Furthermore, it has become clear that gravity and quantum field theory are often complementary descriptions of the same dynamics. The purpose of the research project described here is to investigate to what extent these results can be extended to more realistic, non-supersymmetric systems such as non-extremal black holes. On another front we propose to investigate cosmological implications of recently proposed string compactifications with large extra dimensions. In particular, alternative scenarios for inflation within brane-inspired cosmologies will be analysed.