Temperature at horizon in de Sitter spacetime
Abstract
It is found that there is no period in the imaginary Beltrami time of the de Sitter spacetime with Beltrami metric and that the "surfacegravity" in view of inertial observers in de Sitter spacetime is zero! They show that the horizon might be at zero temperature in de Sitter spacetime and that the thermal property of the horizon in the de Sitter spacetime with a static metric should be analogous to that of the Rindler horizon in Minkowski spacetime.
 Publication:

EPL (Europhysics Letters)
 Pub Date:
 December 2005
 DOI:
 10.1209/epl/i2005103274
 arXiv:
 arXiv:hepth/0404010
 Bibcode:
 2005EL.....72.1045G
 Keywords:

 98.80.Jk;
 11.10.Wx;
 04.70.Dy;
 Mathematical and relativistic aspects of cosmology;
 Finitetemperature field theory;
 Quantum aspects of black holes evaporation thermodynamics;
 High Energy Physics  Theory
 EPrint:
 7 pages, 1 figure