# Deconstructing de Sitter

@article{Balasubramanian2001DeconstructingDS, title={Deconstructing de Sitter}, author={Vijay Balasubramanian and Petr Hořava and Djordje Minic}, journal={Journal of High Energy Physics}, year={2001}, volume={2001}, pages={043-043} }

Semiclassical gravity predicts that de Sitter space has a finite entropy. We suggest a picture for Euclidean de Sitter space in string theory, and use the AdS/CFT correspondence to argue that de Sitter entropy can be understood as the number of degrees of freedom in a quantum mechanical dual.

## 107 Citations

De Sitter entropy from conformal field theory

- Mathematics
- 2002

We propose that the entropy of de Sitter space can be identified with the mutual entropy of a dual conformal field theory. We argue that unitary time evolution in de Sitter space restricts the total…

Constraining de Sitter Space in String Theory.

- PhysicsPhysical review letters
- 2015

It is argued that the heterotic string does not have classical vacua corresponding to de Sitter space-times of dimension four or higher, and suggests that the genericity arguments used in string landscape discussions should be viewed with caution.

A black hole hologram in de Sitter space

- Physics
- 2002

In this paper we show that the entropy of de Sitter space with a black hole in arbitrary dimension can be understood using a modified Cardy-Verlinde entropy formula. We also comment on the observer…

Three-dimensional de Sitter gravity and the dS/CFT correspondence

- Physics
- 2002

Certain aspects of three dimensional asymptotically de Sitter spaces are studied, with emphasis on the mapping between gravity observables and the representation of the conformal symmetry of the…

Matrix model for de Sitter

- Physics
- 2001

Based on a heuristic boost argument, we propose that the 4 dimensional de Sitter space can be described by a spherical Chern-Simons matrix model near the cosmological horizon, or models generalizing…

De Sitter Space

- Physics
- 2002

These lectures present an elementary discussion of some background material relevant to the problem of de Sitter quantum gravity. The first two lectures discuss the classical geometry of de Sitter…

De Sitter cosmic strings and supersymmetry

- Physics, Mathematics
- 2012

We study massive spinor fields in the geometry of a straight cosmic string in a de Sitter background. We find a hidden N = 2 supersymmetry in the fermionic solutions of the equations of motion. We…

Inflation, holography, and the choice of vacuum in de Sitter space

- Physics
- 2002

A family of de Sitter vacua introduced in hep-th/0203198 as plausible initial conditions for inflation, are discussed from the point of view of de Sitter holography. The vacua are argued to be…

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