Dynamical system analysis for DBI dark energy interacting with dark matter

Abstract

A dynamical system analysis related to Dirac Born Infeld (DBI) cosmological model has been investigated in this present work. For spatially flat FRW space time, the Einstein field equation for DBI scenario has been used to study the dynamics of DBI dark energy interacting with dark matter. The DBI dark energy model is considered as a scalar field with a nonstandard kinetic energy term. An interaction between the DBI dark energy and dark matter is considered through a phenomenological interaction between DBI scalar field and the dark matter fluid. The field equations are reduced to an autonomous dynamical system by a suitable redefinition of the basic variables. The potential of the DBI scalar field is assumed to be exponential. Finally, critical points are determined, their nature have been analyzed and corresponding cosmological scenario has been discussed.

12 pages, 9 figures

References in corpus (28)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Cosmological Imprint of an Energy Component with General Equation of State
• A Phantom Menace? Cosmological consequences of a dark energy component with super-negative equation of state
• The Case for a Positive Cosmological Lambda-term
• Quintessence, Cosmic Coincidence, and the Cosmological Constant
• The Cosmological Constant
• Phantom Energy and Cosmic Doomsday
• A Dynamical Solution to the Problem of a Small Cosmological Constant and Late-time Cosmic Acceleration
• k-Inflation
• Essentials of k-essence
• Exponential potentials and cosmological scaling solutions
• Properties of singularities in (phantom) dark energy universe
• Tachyon Matter
• Accelerated expansion of the universe driven by tachyonic matter
• Late-time cosmology in (phantom) scalar-tensor theory: dark energy and the cosmic speed-up
• Measuring the Baryon Acoustic Oscillation scale using the SDSS and 2dFGRS
• Scalar Speed Limits and Cosmology: Acceleration from D-cceleration
• Dilatonic ghost condensate as dark energy
• Le Chatelier-Braun principle in cosmological physics
• Observational constraints on interacting quintessence models
• Multi-Throat Brane Inflation
• Matter density perturbations in interacting quintessence models
• A two measure model of dark energy and dark matter
• Enhanced Inflation in the Dirac-Born-Infeld framework
• Dynamics of Dirac-Born-Infeld dark energy interacting with dark matter

Cited by in corpus (14)

• Dynamical systems applied to cosmology: dark energy and modified gravity
• Finite-time Cosmological Singularities and the Possible Fate of the Universe
• Probing the sign-changeable interaction between dark energy and dark matter with DESI baryon acoustic oscillations and DES supernovae data
• Coupled dark energy: a dynamical analysis with complex scalar field
• Cosmological dynamics of scalar fields with kinetic corrections: Beyond the exponential potential
• Coupled quintessence and the impossibility of an interaction: a dynamical analysis study
• Dynamical analysis for a vector-like dark energy
• Cosmological perturbations and dynamical analysis for interacting quintessence
• Dark D-Brane Cosmology: from background evolution to cosmological perturbations
• III. Interacting Dark Energy: Summary of Models, Pathologies, and Constraints
• Dynamical System Analysis of a Dirac-Born-Infeld Model : A Center Manifold Perspective
• Generalized Model of Interacting Dark Energy and Dark Matter : Phase Portrait Analysis of Evolving Universe
• I. Linear Interacting Dark Energy: Analytical Solutions and Theoretical Pathologies
• Scalar Dark Energy Models and Scalar-Tensor Gravity: Theoretical Explanations for the Accelerated Expansion of Present Universe