# On the dynamical emergence of de Sitter spacetime

1 CPT - E3 Cosmologie
CPT - Centre de Physique Théorique - UMR 7332
Abstract : We present and discuss an asynchronous coordinate system covering de Sitter spacetime, notably in a complete way in 1+1 dimensions. The new coordinates have several interesting cosmological properties: the worldlines of comoving ($x^i=const$) observers are geodesics, cosmic time is finite in the past, and the coordinates asymptotically tend to that of a flat Robertson & Walker model at large times. This analysis also provides an argument in favor of the natural emergence of an equation of state of the type $p=-\rho$ in the context of the standard cosmological model.
Type de document :
Pré-publication, Document de travail
17 pages, 2 figures. 2016

https://hal.archives-ouvertes.fr/hal-01260956
Contributeur : Christian Marinoni <>
Soumis le : vendredi 22 janvier 2016 - 17:55:42
Dernière modification le : jeudi 15 mars 2018 - 16:56:08

### Identifiants

• HAL Id : hal-01260956, version 1
• ARXIV : 1409.3395

### Citation

Christian Marinoni, Heinrich Steigerwald. On the dynamical emergence of de Sitter spacetime. 17 pages, 2 figures. 2016. 〈hal-01260956〉

### Métriques

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