Video URL

https://pirsa.org/17080075

Asymptotic Fragility, Near AdS2 Holography and T\barT deformation

Gorbenko, V. (2017). Asymptotic Fragility, Near AdS2 Holography and T\barT deformation. Perimeter Institute for Theoretical Physics. https://pirsa.org/17080075

Gorbenko, Victor. Asymptotic Fragility, Near AdS2 Holography and T\barT deformation. Perimeter Institute for Theoretical Physics, Aug. 29, 2017, https://pirsa.org/17080075 

          @misc{ scivideos_PIRSA:17080075,
            doi = {10.48660/17080075},
            url = {https://pirsa.org/17080075},
            author = {Gorbenko, Victor},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Asymptotic Fragility, Near AdS2 Holography and T\barT deformation},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2017},
            month = {aug},
            note = {PIRSA:17080075 see, \url{https://scivideos.org/pirsa/17080075}}
          }

Victor Gorbenko Institute for Advanced Study (IAS) - School of Natural Sciences (SNS)

DOI 10.48660/17080075
Source Repository PIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

After reviewing the three things in the title I will argue that they represent the same physical phenomenon. In details, Jackiw–Teitelboim (JT) gravity coupled to an arbitrary quantum field theory results in a gravitational dressing of field theoretical scattering amplitudes. The exact expression for the dressed S-matrix was previously known as a solvable example of a novel UV asymptotic behavior, dubbed asymptotic fragility. This dressing is equivalent to the T\barT deformation of the initial quantum field theory compactified on a circle. The same dressed S-matrix is also obtained as a flat space limit of the near AdS2 holography based on (JT) gravity. In order to preserve the flat space unitarity, however, the conventional Schwarzian dressing of boundary correlators needs to be slightly extended. As an intermediate result I will present a new simple expression for flat space amplitudes of massive particles in terms of correlators of holographic CFT’s.