New coordinates for de Sitter space and de Sitter radiation

2002/04/30 by Maulik Parikh, Maulik K. Parikh · 9 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Quantum Electrodynamics and Casimir Effect #gr-qc #hep-th

paper · pdf · doi:10.1016/s0370-2693(02)02701-6

published as Phys.Lett.B546:189-195,2002 · LaTeX, 10 pages; v2. references added; v3. minor sign errors fixed, reference added, journal version

openalex publication_date 2002/10/01 · arxiv created 2002/10/02 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/02

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.

Citations

• Membrane Horizons: The Black Hole's New Clothes
• Stability of gravity with a cosmological constant
• Hawking Radiation as Tunneling
• Les Houches Lectures on De Sitter Space

Cited by

• Logarithmic entropy of Kehagias–Sfetsos black hole with self-gravitation in asymptotically flat IR modified Hořava gravity
• HAWKING TEMPERATURE OF DILATON BLACK HOLES FROM TUNNELING
• Dirac particle tunneling from black rings
• Charged Particles’ Tunneling from Hot-NUT-Kerr-Newman-Kasuya Spacetime
• Charged fermions tunnelling from Kerr–Newman black holes
• A First-Quantized Formalism for Cosmological Particle Production
• Gravitinos tunneling from black holes
• Temperature and entropy of Schwarzschild–de Sitter space-time
• Quantum tunneling radiation from self-dual black holes