de Sitter entropy from conformal field theory

Details de Sitter entropy from conformal field theory de Sitter entropy from conformal field theory

2002-03-11

arxiv.org/abs/hep-th/0203083v3

JHEP0204:019,2002

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX, 22 pages, 2 eps figures. v2: references added. v3: minor additional comments, additional references

Scientific paper

10.1088/1126-6708/2002/04/019

We propose that the entropy of de Sitter space can be identified with the mutual entropy of a dual conformal field theory. We argue that unitary time evolution in de Sitter space restricts the total number of excited degrees of freedom to be bounded by the de Sitter entropy, and we give a CFT interpretation of this restriction. We also clarify issues arising from the fact that both de Sitter and anti de Sitter have dual descriptions in terms of conformal field theory.

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