Random versus holographic fluctuations of the background metric. II. Note on the dark energies arising due to microstructure of space-time

Details Random versus holographic fluctuations of the background metric. II. Note on the dark energies arising due to microstructure of space-time Random versus holographic fluctuations of the background metric. II. Note on the dark energies arising due to microstructure of space-time

2009-01-16

arxiv.org/abs/0901.2402v2

Europhys. Lett. 91: 30002, 2010

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

3 pages

Scientific paper

10.1209/0295-5075/91/30002

Over the last few years a certain class of dark-energy models decaying inversely proportional to the square of the horizon distance emerged on the basis either of Heisenberg uncertainty relations or of the uncertainty relation between the four-volume and the cosmological constant. The very nature of these dark energies is understood to be the same, namely it is the energy of background space/metric fluctuations. Putting together these uncertainty relations one finds that the model of random fluctuations of the background metric is favored over the holographic one.

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