PIRSA:14040074

Universal problems

Mattingly, D. (2014). Universal problems. Perimeter Institute. https://pirsa.org/14040074

Mattingly, David. Universal problems. Perimeter Institute, Apr. 17, 2014, https://pirsa.org/14040074 

          @misc{ pirsa_PIRSA:14040074,
            doi = {10.48660/14040074},
            url = {https://pirsa.org/14040074},
            author = {Mattingly, David},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Universal problems},
            publisher = {Perimeter Institute},
            year = {2014},
            month = {apr},
            note = {PIRSA:14040074 see, \url{https://pirsa.org}}
          }

David Mattingly University of New Hampshire

Talk numberPIRSA:14040074
DOI10.48660/14040074
Collection
Talk Type Scientific Series
Subject

Abstract

Arguments that gravity cannot be a local renormalizable quantum field theory come from both field theory lore and black hole physics. Two current approaches to quantum gravity, asymptotic safety and Horava-Lifshitz gravity, both of which treat quantum gravity as a local renormalizable QFT, are explicitly constructed to counter field theory arguments about the non-renormalizability of gravity. However, any proposed renormalizable theory of quantum gravity must also answer black hole physics based counter-arguments. Formulating these arguments concretely requires understanding black hole solutions and thermodynamics in these theories. For Horava-Lifshitz gravity this entails understanding the thermodynamics of universal horizons. I describe the current status of universal horizon physics and which aspects are/are not still in tension with the fundamental premise of renormalizability.