Dynamics of Chiral Cosmology

Abstract

We perform a detailed analysis for the dynamics of Chiral cosmology in a spatially flat Friedmann-Lema\^ıtre-Robertson-Walker universe with a mixed potential term. The stationary points are categorized in four families. Previous results in the literature are recovered while new phases in the cosmological evolution are found. From our analysis we find nine different cosmological solutions, the eight describe scaling solutions, where the one is that of a pressureless fluid, while only one de Sitter solution is recovered.

20 pages, 10 figures, 1 table, version accepted for publication in Classical and Quantum Gravity

References in corpus (23)

• Dynamics of dark energy
• Covariant Galileon
• Galileon Cosmology
• Consequences of dark matter-dark energy interaction on cosmological parameters derived from SNIa data
• Le Chatelier-Braun principle in cosmological physics
• Using the Noether symmetry approach to probe the nature of dark energy
• Multiple field inflation
• Quintom cosmologies with arbitrary potentials
• Dynamical behavior in mimetic F(R) gravity
• Dynamics of Quintessence Models of Dark Energy with Exponential Coupling to the Dark Matter
• Power-laws f(R) theories are cosmologically unacceptable
• Dynamical analysis of generalized Galileon cosmology
• Nonlinear interacting cosmological models after Planck 2018 legacy release and the $H_0$ tension
• Internal space structure generalization of the quintom cosmological scenario
• Two scalar field cosmology: Conservation laws and exact solutions
• Observational Constraints on New Exact Inflationary Scalar-field Solutions
• Nflation: non-gaussianity in the horizon-crossing approximation
• Singular Inflation
• Dynamics and cosmological evolution in Λ-varying cosmology
• Cosmological Evolution of Two-Scalar fields Cosmology in the Jordan frame
• Phase Space of Anisotropic $R^n$ Cosmologies
• Hamiltonian Analysis of Lagrange Multiplier Modified Gravity
• Dynamics of classes of barotropic fluids in spatially curved FRW spacetimes

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• Revisiting Fractional Cosmology
• Testing an oscillatory behavior of dark energy
• Dark Energy within the Generalized Uncertainty Principle in Light of DESI DR2
• Tracking the Multifield Dynamics with Cosmological Data: A Monte Carlo approach
• $\mathcal{N}$-field cosmology in hyperbolic field space: stability and general solutions
• Classical and quantum exact solutions for a FRW in chiral like cosmology
• Averaging Generalized Scalar Field Cosmologies I: Locally Rotationally Symmetric Bianchi III and open Friedmann-Lemaître-Robertson-Walker models
• (Slow-)Twisting inflationary attractors
• New conservation laws and exact cosmological solutions in Brans-Dicke cosmology with an extra scalar field
• Scalar field evolution at background and perturbation levels for a broad class of potentials
• Anisotropic chiral cosmology: exact solutions
• New Anisotropic Exact Solution in Multifield Cosmology
• Variational symmetries and superintegrability in multifield cosmology
• Anisotropic Spacetimes in Chiral Scalar Field Cosmology
• Accelerating scaling solutions from dark matter particle creation