论文标题
在ADS_3/CFT_2全息图中的BPS扇区上
On the BPS sector in AdS_3/CFT_2 Holography
论文作者
论文摘要
从黑洞熵和CFT椭圆形之间的匹配到构建大的几何微晶和识别CFT中相应状态的较大家族，ADS_3/CFT_2二元性二元性的BPS扇区一直是探索量规/重力二元性的肥沃基础。世界表方法提供了一种工具，可以进一步探索散装中的字符串理论与相应的CFT数量之间的关系。我们展示了如何将单个BPS串与对称产品Orbifold CFT中的对应物匹配。在此过程中，我们发现了微晶几何构造与BPS超级格拉维顿字符串的冷凝水之间的确切匹配，并讨论了它们在BPS状态的更广泛收集中的作用。特别是，我们探讨了微晶几何形状如何发展奇异性。弦理论如何通过``无张力''弦动力学的出现来解决这些奇异性，这是弱耦合CFT中发现的结构的延续到散装中字符串理论所描述的强耦合方案。我们认为，这种``无张力''弦是批量描述中黑洞微结构的原因。
The BPS sector in AdS_3/CFT_2 duality has been fertile ground for the exploration of gauge/gravity duality, from the match between black hole entropy and the CFT elliptic genus to the construction of large families of geometrical microstates and the identification of the corresponding states in the CFT. Worldsheet methods provide a tool to further explore the relation between string theory in the bulk and corresponding CFT quantities. We show how to match individual BPS strings to their counterparts in the symmetric product orbifold CFT. In the process, we find an exact match between known constructions of microstate geometries and condensates of BPS supergraviton strings, and discuss their role in the broader collection of BPS states. In particular, we explore how microstate geometries develop singularities; and how string theory resolves these singularities through the appearance of ``tensionless'' string dynamics, which is the continuation of structures found in the weak-coupling CFT into the strongly coupled regime described by string theory in the bulk. We argue that such ``tensionless'' strings are responsible for black hole microstructure in the bulk description.
