Emergence of Cosmic Space and the Generalized Holographic Equipartition

Abstract

Recently, a novel idea about our expanding Universe was proposed by T. Padmanabhan [arXiv:1206.4916]. He suggested that the expansion of our Universe can be thought of as the emergence of space as cosmic time progresses. The emergence is governed by the basic relation that the increase rate of Hubble volume is linearly determined by the difference between the number of degrees of freedom on the horizon surface and the one in the bulk. In this paper, following this idea, we generalize the basic relation to derive the Friedmann equations of an $(n+1)$-dimensional Friedmann-Robertson-Walker universe corresponding to general relativity, Gauss-Bonnet gravity, and Lovelock gravity.

arXiv comment8 pages, no figures, published version

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• Friedmann equations in braneworld scenarios from emergence of cosmic space
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• First Law of Thermodynamics and Emergence of Cosmic Space in a Non-Flat Universe
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• A cosmological model from emergence of space
• The birth of the universe in a new G-Theory approach
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• MOND Theory and Thermodynamics of Spacetime
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• Emergence and expansion of cosmic space in an accelerating BIon
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