Sergio Hernandez-Cuenca (MIT) “Black Holes at Non-Perturbatively Low Temperatures”
Abstract:At exponentially low temperatures in the black hole entropy, (doubly) non-perturbative effects are not merely important; they dominate. In this talk, I’ll address this regime using the near-extremal sector universally captured by JT-like theories and its matrix integral description. I’ll begin by explaining how the matrix ensemble generically implies a negative divergence at extremality of the annealed entropy traditionally computed … Read More
Chintan Patel (Tata Institute of Fundamental Research/Kavli Institute for Theoretical Physics) “Charged Superradiance in AdS5 x S5 black holes”
Abstract:It has been known since more than a decade that a class of charged black holes in AdS space are unstable to emission of charged particles. There have been many attempts to understand the endpoint of this instability, including the construction of hairy black hole solutions which consist of a condensate of a charged scalar field in the black hole background. … Read More
Zixia Wei (Harvard) “Holographic Dual of Crosscap CFT and Emergent de Sitter Features”
Abstract: I propose a bottom-up correspondence between a CFT defined on 2D non-orientable manifolds, such as the real projective plane (RP2) and the Klein bottle (K2), and AdS3 Einstein gravity with dS2 end-of-the-world branes. In this correspondence, a global dS2 end-of-the-world brane (a quotient by Z2) is described by the unitary time evolution of a crosscap state in the CFT, post-selected … Read More
Mark Van Raamsdonk (UBC) “tba”
Adam Brown (Stanford) “The Channel Capacity of a Relativistic String”
I explore the limitations on the capacity of a relativistic channel to transmit power and information that arise because of the finiteness of the transverse speed of light. As a model system, I consider a rope constructed from a fundamental string, for which relativistic invariance is built in. By wiggling one end of the string, both power and information may … Read More