Semiclassical perdurance of de Sitter space
P Ginsparg, MJ Perry - Nuclear Physics B, 1983 - Elsevier
P Ginsparg, MJ Perry
Nuclear Physics B, 1983•ElsevierWe investigate the classical and semiclassical instabilities of de Sitter space. Due to the
presence of a cosmological event horizon and its associated Hawking temperature, de Sitter
space might be expected to behave in some respects like flat space at finite temperature. We
use the euclidean formulation of quantum gravity to show that de Sitter space does exhibit a
semiclassical instability to the nucleation of black holes. We find, however, no analog to the
classical instability due to gravitational clumping of thermally excited gravitons.
presence of a cosmological event horizon and its associated Hawking temperature, de Sitter
space might be expected to behave in some respects like flat space at finite temperature. We
use the euclidean formulation of quantum gravity to show that de Sitter space does exhibit a
semiclassical instability to the nucleation of black holes. We find, however, no analog to the
classical instability due to gravitational clumping of thermally excited gravitons.
Abstract
We investigate the classical and semiclassical instabilities of de Sitter space. Due to the presence of a cosmological event horizon and its associated Hawking temperature, de Sitter space might be expected to behave in some respects like flat space at finite temperature. We use the euclidean formulation of quantum gravity to show that de Sitter space does exhibit a semiclassical instability to the nucleation of black holes. We find, however, no analog to the classical instability due to gravitational clumping of thermally excited gravitons.
Elsevier
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