Could LIV/noncommutativity alleviate the cosmological constant problem?

We test the hypothesis that in models with an explicit breaking of Lorentz invariance violation (LIV), the problem with the cosmological constant may, if not already be solved, then at least be partially mitigated by improving its UV behavior. Certain class of noncommutative models that have a well-...

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Published inInternational journal of modern physics. D, Gravitation, astrophysics, cosmology Vol. 27; no. 9; p. 1850095
Main Author Samsarov, Andjelo
Format Journal Article
LanguageEnglish
Published Singapore World Scientific Publishing Company 01.07.2018
World Scientific Publishing Co. Pte., Ltd
Subjects
Astronomical models
Cosmological constant
Deformation
Relativity
Lorentz invariance violation (LIV)
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Summary:We test the hypothesis that in models with an explicit breaking of Lorentz invariance violation (LIV), the problem with the cosmological constant may, if not already be solved, then at least be partially mitigated by improving its UV behavior. Certain class of noncommutative models that have a well-defined dual momentum space geometry and in addition, setting up a suitable frame for developing the appropriate doubly (or deformed) special relativity (DSR) models are also subject to the same test.
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content type line 14
ISSN:0218-2718
1793-6594
DOI:10.1142/S0218271818500955