New Coordinates for de Sitter Space and de Sitter Radiation

Preprint

2 October 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-th/0204107

Abstract

We introduce a simple coordinate system covering half of de Sitter space. The new coordinates have several attractive properties: the time direction is a Killing vector, the metric is smooth at the horizon, and constant-time slices are just flat Euclidean space. We demonstrate the usefulness of the coordinates by calculating the rate at which particles tunnel across the horizon. When self-gravitation is taken into account, the resulting tunneling rate is only approximately thermal. The effective temperature decreases through the emission of radiation.

Keywords

COORDINATE SYSTEM
SIMPLE COORDINATE
SITTER RADIATION
SYSTEM COVERING
NEW COORDINATES
SITTER SPACE
GRAVITATION
TUNNELING

All Related Versions

Version 1, 2002-04-14, ArXiv
Version 2, 2002-06-22, ArXiv
Version 3, 2002-10-02, ArXiv
Published version: Physics Letters B, 546 (3-4), 189.

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