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arXiv · hep-th/9907115

Holographic Cosmology and its Relevant Degrees of Freedom

Richard Dawid
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Abstract

We reconsider the options for cosmological holography. We suggest that a global and time--symmetric version of the Fischler-Susskind bound is the most natural generalization of the holographic bound encountered in AdS and De Sitter space. A consistent discussion of cosmological holography seems to imply an understanding of the notion of ``number of degrees of freedom'' that deviates from its simple definition as the entropy of the current state. The introduction of a more adequate notion of degree of freedom makes the suggested variation of the Fischler-Susskind bound look like a stringent and viable bound in all 4--dimensional cosmologies without a cosmological constant.

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Richard Dawid. 1999-07-14. Holographic Cosmology and its Relevant Degrees of Freedom. https://arxiv.org/abs/hep-th/9907115

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