Scalar field theory for warm dark matter

Abstract

The warm dark matter (WDM) can be described by simple and useful model called reduced relativistic gas (RRG). In this work, it is analytically constructed the scalar field actions minimally and non-minimally coupled to gravity, which are equivalent to RRG in the sense they produce the same cosmological solutions for the conformal factor of the metric. In particular, we construct the scalar theory which corresponds to the model of ultra-relativistic ideal gas of spinless particles possessing conformal symmetry. Finally, the possibility of supplementing our scalar field model with a dynamical dark energy in the form of a running cosmological constant (RCC) is also considered.

arXiv comment19 pages, 3 figures. New comments added. Accepted for publication in The European Physical Journal Plus

References in corpus (24)

• Dynamics of dark energy
• The Cosmological Constant and Dark Energy
• Particle Dark Matter: Evidence, Candidates and Constraints
• Cosmological Imprint of an Energy Component with General Equation of State
• An alternative to quintessence
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 10 and 11 galaxy samples
• Too big to fail? The puzzling darkness of massive Milky Way subhaloes
• Constraining Warm Dark Matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-alpha forest
• Non-Baryonic Dark Matter - Observational Evidence and Detection Methods
• Precision Determination of the Mass Function of Dark Matter Halos
• Tachyons, Scalar Fields and Cosmology
• Cosmological constant and vacuum energy: old and new ideas
• On the possible running of the cosmological "constant"
• Renormalization Group and Decoupling in Curved Space
• Observational Challenges for the Standard FLRW Model
• Conformal transformations in classical gravitational theories and in cosmology
• Gravitational and Chiral Anomalies in the Running Vacuum Universe and Matter-Antimatter Asymmetry
• Self-interacting Warm Dark Matter
• Massive fields temper anomaly-induced inflation: the clue to graceful exit?
• Conformal Transformation in Gravity
• Simple Cosmological Model with Relativistic Gas
• Testing dark matter warmness and quantity via the reduced relativistic gas model
• On general features of warm dark matter with reduced relativistic gas
• Constraints from observational data for a running cosmological constant and warm dark matter with curvature