Abstract

In this talk, the speaker will present a class of weakly non-local gravitational theories finite and unitarity at quantum level. Moreover, such class of theories is actually a range of anomaly-free conformally invariant quantum theories in the spontaneously broken phase of the Weyl symmetry. At classical level, he will show how the Weyl conformal invariance is likely able to tame all the space-time singularities that plague not only Einstein gravity, but also local and weakly non-local higher derivative theories. This latter statement is rigorously proved by a singularity theorem that applies to a large class of weakly non-local theories. Following the seminal paper by Narlikar and Kembhavi, he will provide an explicit construction of singularity-free black hole exact solutions.

About the program

For more information, please refer to the program website at http://iasprogram.ust.hk/particle_theory.

The seminar is free and open to all. Seating is on a first come, first served basis.

HKUST Jockey Club Institute for Advanced Study
Enquiries: ias@ust.hk / 2358 5912
http://ias.ust.hk