dS2 as excitation of AdS2

Authors

Florian Ecker, Institute of Theoretical Physics, Vienna University of Technology
Daniel Grumiller, Institute for Theoretical Physics, Vienna University of TechnologyFollow
Robert McNees, Loyola University ChicagoFollow

Document Type

Article

Publication Date

12-5-2022

Publication Title

SciPost Physics

Volume

13

Issue

6

Pages

1-50

Publisher Name

SciPost

Abstract

Title- dS₂ as excitation of AdS₂

We introduce a family of 2D dilaton gravity models with state-dependent constant curvature so that dS₂ emerges as an excitation of AdS₂. Curiously, the strong coupling region corresponds to the asymptotic region geometrically. Apart from these key differences, many features resemble the Almheiri–Polchinski model. We discuss perturbative and non-perturbative thermodynamical stability, bubble nucleation through matter shockwaves, and semiclassical backreaction effects. In some of these models, we find that low temperatures are dominated by AdS₂ but high temperatures are dominated by dS₂, concurrent with a recent proposal by Susskind.

Comments

Author Posting © The Author(s), 2022. This article was published open access in SciPost Physics, Volume 13, Issue 6, December, 2022. https://doi.org/10.21468/SciPostPhys.13.6.119

Recommended Citation

Ecker, Florian; Grumiller, Daniel; and McNees, Robert, "dS2 as excitation of AdS2" (2022). Physics: Faculty Publications and Other Works. 103.
https://ecommons.luc.edu/physics_facpubs/103

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright Statement

© The Author(s), 2022.