AdS(Algeometry, duality and Strings) seminar
Student No.:20
Time:Thu 13:30-15:00
Instructor:Song Wei, Yan Wenbin, Xu Jianfei  
Place:Lecture Hall, Jin Chun Yuan West Bldg.
Starting Date:2018-3-8
Ending Date:2018-6-14



Speaker: Qing-Guo Huang [ITP CAS]

Title: Gravitational Wave: a probe to the early universe

Abstract: I will focus on two kinds of gravitational waves in our Universe. One is the so-called primordial gravitational wave generated from vacuum during inflation and the other is the gravitational wave from merger of primordial black hole binaries. And we will discuss how we can learn a lot about the physics in the early universe from them.






Speaker: Ioannis  Papadimitriou [KIAS, Korea]

Title: 5D Rotating Black Holes and the nAdS2/nCFT1 Correspondence

Abstract: I will discuss a consistent Kaluza-Klein reduction of 5D Einstein gravity on warped S^2 x S^1 that includes the Myers-Perry or Kerr-AdS black holes with two equal angular momenta as special cases. The effective 2D theory admits an AdS2 vacuum corresponding to the extremal Kerr black hole. I will holographically derive the quantum effective action of the dual 1D theory in conformal perturbation theory around the extremal solution and will show how the presence of a conformal anomaly gives rise to the Schwarzian effective action. I will conclude with some comments on black hole thermodynamics.





Speaker: Kowshik Bettadapura [Australian Natl. U.]

Title: On splitting deformations of super Riemann surfaces

Abstract: In this talk I will introduce super Riemann surfaces and their deformations. The goal is to classify them as complex superspaces, thereby studying aspects of the local geometry of the corresponding moduli space. I will present some recent results and open questions in this direction.