Found 3 result(s)
Regular Seminar Diego Hofman (UVA)
at: 15:00 room H503  abstract: Two dimensional Warped Conformal Field Theories (WCFTs) may represent the simplest examples of field theories without Lorentz invariance that can be described holographically. As such they constitute a natural window into holography in non AdS spacetimes, including the near horizon geometry of generic extremal black holes. I’ll explain that WCFTs posses a type of boost symmetry. Using this insight, I’ll discuss how to couple these theories to background geometry. This geometry is not Riemannian. We call it Warped Geometry and it turns out to be a variant of a NewtonCartan structure with additional scaling symmetries. With this formalism the equivalent of Weyl invariance in these theories will be discussed as well as examples of WCFTs. Lastly I’ll present a systematic description of the holographic duals of WCFTs. I’ll argue that the minimal setup is not Einstein gravity but an SL(2,R) x U(1) ChernSimons Theory, which we call Lower Spin Gravity. 
Triangular Seminar Diego Hofman (Amsterdam)
at: 16:30 room David Sizer LT, Francis Bancroft  abstract:
