Deformed special relativity with an invariant minimum speed and its cosmological implications

Details Deformed special relativity with an invariant minimum speed and its cosmological implications Deformed special relativity with an invariant minimum speed and its cosmological implications

2007-11-30

arxiv.org/abs/0711.4897v4

Pramana71:1-14,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages and 3 figures

Scientific paper

The paper aims to introduce a new symmetry principle in the space-time geometry through the elimination of the classical idea of rest and by including a universal minimum limit of speed in the subatomic world. Such a limit, unattainable by particles, represents a preferred reference frame associated with a universal background field that breaks Lorentz symmetry. Thus the structure of space-time is extended due to the presence of a vacuum energy density, which leads to a negative pressure at cosmological scales. The tiny values of the cosmological constant and the vacuum energy density shall be successfully obtained, being in good agreement with current observational results.

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