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Journal of High Energy Physics

, 2019:144 | Cite as

Holographic description of boundary gravitons in (3+1) dimensions

  • Seth K. Asante
  • Bianca Dittrich
  • Hal M. HaggardEmail author
Open Access
Regular Article - Theoretical Physics
  • 43 Downloads

Abstract

Gravity is uniquely situated in between classical topological field theories and standard local field theories. This can be seen in the quasi-local nature of gravitational observables, but is nowhere more apparent than in gravity’s holographic formulation. Holography holds promise for simplifying computations in quantum gravity. While holographic descriptions of three-dimensional spacetimes and of spacetimes with a negative cosmological constant are well-developed, a complete boundary description of zero curvature, four-dimensional spacetime is not currently available. Building on previous work in three-dimensions, we provide a new route to four-dimensional holography and its boundary gravitons. Using Regge calculus linearized around a flat Euclidean background with the topology of a solid hyper-torus, we obtain the effective action for a dual boundary theory, which describes the dynamics of the boundary gravitons. Remarkably, in the continuum limit and at large radii this boundary theory is local and closely analogous to the corresponding result in three-dimensions. The boundary effective action has a degenerate kinetic term that leads to singularities in the one-loop partition function that are independent of the discretization. These results establish a rich boundary dynamics for four-dimensional flat holography.

Keywords

AdS-CFT Correspondence Lattice Models of Gravity Space-Time Symmetries Gauge Symmetry 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2019

Authors and Affiliations

  1. 1.Perimeter Institute for Theoretical PhysicsWaterlooCanada
  2. 2.Department of Physics and AstronomyUniversity of WaterlooWaterlooCanada
  3. 3.Institute for Mathematics, Astrophysics and Particle PhysicsRadboud UniversityNijmegenThe Netherlands
  4. 4.Physics Program, Bard CollegeAnnandale-On-HudsonU.S.A.

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