G-essence with Yukawa Interactions

Abstract

We study the g-essence model with Yukawa interactions between a scalar field $\varphi$ and a Dirac field $\psi$. For the homogeneous, isotropic and flat Friedmann-Robertson-Walker universe filled with the such g-essence, the exact solution of the model is found. Moreover, we reconstruct the corresponding scalar and fermionic potentials which describe the coupled dynamics of the scalar and fermionic fields. It is shown that some particular g-essence models with Yukawa interactions correspond to the usual and generalized Chaplygin gas unified models of dark energy and dark matter. Also we present some scalar-fermionic Dirac-Born-Infeld models corresponding g-essence models with Yukawa interactions which again describe the unified dark energy-dark matter system.

13 pages

References in corpus (42)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• An alternative to quintessence
• Generalized Chaplygin Gas, Accelerated Expansion and Dark Energy-Matter Unification
• A Dynamical Solution to the Problem of a Small Cosmological Constant and Late-time Cosmic Acceleration
• k-Inflation
• Essentials of k-essence
• Kinetically Driven Quintessence
• Cores in Dwarf Galaxies from Dark Matter with a Yukawa Potential
• LambdaCDM epoch reconstruction from F(R,G) and modified Gauss-Bonnet gravities
• Leading Log Solution for Inflationary Yukawa
• Kinetic k-essence and Quintessence
• Spinors, Inflation, and Non-Singular Cyclic Cosmologies
• Fermions as sources of accelerated regimes in cosmology
• Gravitational corrections to Yukawa systems
• On the $\Lambda$CDM Universe in $f(G)$ gravity
• Spinor Field in Bianchi type-I Universe: regular solutions
• Dark Energy Model with Spinor Matter and Its Quintom Scenario
• Spinor Dark Energy and Cosmological Coincidence Problem
• Pure kinetic k-essence as the cosmic speed-up
• Gravitational Corrections to Yukawa and Phi^4 Interactions
• Nonlinear spinor field in cosmology
• Cosmological model with non-minimally coupled fermionic field
• Nonlinear Spinor Field in Bianchi type-I Universe filled with Perfect Fluid: Exact Self-consistent Solutions
• Modified Chaplygin Gas and Solvable F-essence Cosmologies
• Fermions in Brans-Dicke cosmology
• Phantom cosmologies and fermions
• Dark energy in some integrable and nonintegrable FRW cosmological models
• G-essence cosmologies with scalar-fermion interactions
• Thermodynamics of Spinor Quintom
• Fermion fields in Einstein-Cartan theory and the accelerated-decelerated transition in a primordial Universe
• A Cosmological Model with Fermionic Field
• Time reparameterization in Bianchi type I spinor cosmology
• Accelerated expansion in bosonic and fermionic 2D cosmologies with quantum effects
• Some cosmological aspects of Horava-Lifshitz gravity: integrable and nonintegrable models
• A Cosmological Model with Fermionic Field and Gauss-Bonnet Term
• FRW cosmological models with integrable and nonintegrable differential equations of state
• An Exact Cosmological Solution of the Coupled Einstein-Majorana Fermion-Scalar Field Equations
• Reconstruction of f-essence and fermionic Chaplygin gas models of dark energy
• Accelerated expansion of the Universe driven by G-essence
• Cosmological production of fermions in a flat Friedman universe with linearly growing scale factor: exactly solvable model
• Einstein-Cartan-Dirac Theory in (1+2)-Dimensions

Cited by in corpus (12)

• Accelerating universe from F(T) gravity
• FRW Cosmology in F(R,T) gravity
• FRW and Bianchi type I cosmology of f-essence
• Dark energy in some integrable and nonintegrable FRW cosmological models
• G-essence cosmologies with scalar-fermion interactions
• Einstein-Cartan gravity with scalar-fermion interactions
• Cosmological evolution of equation of state for dark energy in G-essence models
• Cosmological Einstein-Maxwell model with $g$-essence
• Some Models of Cyclic and Knot Universes
• Analysis cosmological tachyon and fermion model and observation data constraints
• Noether symmetry in $F(T)$ gravity with $f$-essence
• Starobinsky model with f-essence