2006/07/29 by Seok Kim, Ki-Myeong Lee
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Black hole (networking) #Cosmology #Entropy (arrow of time) #Geometric Analysis and Curvature Flows #Geometry and complex manifolds #Graviton #Holomorphic function #Homogeneous #Invariant (physics) #String theory #hep-th
paper · pdf · doi:10.1088/1126-6708/2006/12/077
published as JHEP0612:077,2006 · 25 pages, no figures, v2: references added, comments added in the conclusion
arxiv created 2006/07/29 · openalex publication_date 2006/12/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We explore 1/16-BPS objects of type IIB string theory in AdS5 * S5. First, we consider supersymmetric AdS5 black holes, which should be 1/16-BPS and have a characteristic that not all physical charges are independent. We point out that the Bekenstein-Hawking entropy of these black holes admits a remarkably simple expression in terms of (dependent) physical charges, which suggests its microscopic origin via certain Cardy or Hardy-Ramanujan formula. We also note that there is an upper bound for the angular momenta given by the electric charges. Second, we construct a class of 1/16-BPS giant graviton solutions in AdS5 * S5 and explore their properties. The solutions are given by the intersections of AdS5 * S5 and complex 3 dimensional holomorphic hyperspaces in C1+5, the latter being the zero loci of three holomorphic functions which are homogeneous with suitable weights on coordinates. We investigate examples of giant gravitons, including their degenerations to tensionless strings.