Bianchi type I expanding universe in Weyl-invariant gravity with a quartic interaction term

We will focus on the effect of a Weyl-invariant model with a quadratic interaction term and a free scalar field ψ . A set of analytic solutions will be obtained for this model. This model provides a dynamical alternative to the standard Λ CDM model. In particular, we will show that the quartic Weyl-...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2017-11, Vol.77 (11), p.1-13, Article 805
Main Authors: Kao, W. F., Lin, Ing-Chen
Format: Article
Language:English
Subjects:
Analysis
Astronomy
Astrophysics and Cosmology
Dark matter
Elementary Particles
Expanding universe theory
Hadrons
Heavy Ions
Hubble diagram
Invariants
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
String Theory
Universe
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Summary:We will focus on the effect of a Weyl-invariant model with a quadratic interaction term and a free scalar field ψ . A set of analytic solutions will be obtained for this model. This model provides a dynamical alternative to the standard Λ CDM model. In particular, we will show that the quartic Weyl-invariant model prediction is consistent with the Hubble diagram observations.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-017-5387-3