Flat space holography and complex SYK
High Energy Physics - Theory
2020-04-29 v2 Strongly Correlated Electrons
General Relativity and Quantum Cosmology
Abstract
We provide the first steps towards a flat space holographic correspondence in two bulk spacetime dimensions. The gravity side is described by a conformally transformed version of the matterless Callan-Giddings-Harvey-Strominger model. The field theory side follows from the complex Sachdev-Ye-Kitaev model in the limit of large specific heat and vanishing compressibility. We derive the boundary action analogous to the Schwarzian as the key link between gravity and field theory sides and show that it coincides with a geometric action discovered recently by one of us, see 1908.08089.
Cite
@article{arxiv.1911.05739,
title = {Flat space holography and complex SYK},
author = {Hamid Afshar and Hernan Gonzalez and Daniel Grumiller and Dmitri Vassilevich},
journal= {arXiv preprint arXiv:1911.05739},
year = {2020}
}
Comments
8pp, v2: added ref