Generalised DBI-Quintessence

Abstract

We investigate the phase space of a quintessence theory governed by a generalised version of the DBI action, using a combination of numeric and analytic methods. The additional degrees of freedom lead to a vastly richer phase space structure, where the field covers the full equation of state parameter space; $-1\le \omega \le 1$. We find many non-trivial solution curves to the equations of motion which indicate that DBI quintessence is an interesting candidate for a viable k-essence model.

33 pages, lots of figures

References in corpus (62)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Dynamics of dark energy
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Cosmological parameters from SDSS and WMAP
• A Phantom Menace? Cosmological consequences of a dark energy component with super-negative equation of state
• Non-Gaussian features of primordial fluctuations in single field inflationary models
• Quintessence, Cosmic Coincidence, and the Cosmological Constant
• A Dynamical Solution to the Problem of a Small Cosmological Constant and Late-time Cosmic Acceleration
• A Model of Holographic Dark Energy
• Essentials of k-essence
• Dielectric-Branes
• Rolling Tachyon
• DBI in the Sky
• Tachyon Matter
• Observational Signatures and Non-Gaussianities of General Single Field Inflation
• Monodromy in the CMB: Gravity Waves and String Inflation
• Gravity Waves and Linear Inflation from Axion Monodromy
• Scalar Speed Limits and Cosmology: Acceleration from D-cceleration
• Flux compactifications in string theory: a comprehensive review
• On non-abelian generalisation of Born-Infeld action in string theory
• A classification of scalar field potentials with cosmological scaling solutions
• Cosmological Evolution of the Rolling Tachyon
• A Dark Energy Model Characterized by the Age of the Universe
• A New Model of Agegraphic Dark Energy
• Constraints on holographic dark energy from type Ia supernova observations
• Supersymmetric World-volume Action for Non-BPS D-branes
• T-duality and Actions for Non-BPS D-branes
• Tachyon couplings on non-BPS D-branes and Dirac-Born-Infeld action
• Supernova Constraints on a holographic dark energy model
• Proposal for non-BPS D-brane action
• Kahler Moduli Inflation
• Coupled dark energy: Towards a general description of the dynamics
• Fibre Inflation: Observable Gravity Waves from IIB String Compactifications
• Constraints on Holographic Dark Energy from Latest Supernovae, Galaxy Clustering, and Cosmic Microwave Background Anisotropy Observations
• A Microscopic Limit on Gravitational Waves from D-brane Inflation
• Multi-Throat Brane Inflation
• DBI-essence
• Spinflation
• Inflation with multiple sound speeds: a model of multiple DBI type actions and non-Gaussianities
• Current constraints on interacting holographic dark energy
• Multifield DBI Inflation and Non-Gaussianities
• DBI Inflation in the Tip Region of a Warped Throat
• M-flation: Inflation From Matrix Valued Scalar Fields
• Simple Bounds from the Perturbative Regime of Inflation
• Gravitational Wave Constraints on DBI Inflation
• Inflation from Wrapped Branes
• Multi-field DBI inflation: introducing bulk forms and revisiting the gravitational wave constraints
• N-flation from multiple DBI type actions
• Constraints on Wrapped DBI Inflation in a Warped Throat
• New agegraphic dark energy as a rolling tachyon
• IR Inflation from Multiple Branes
• Wilson Line Inflation
• Cosmological Evolution of Dirac-Born-Infeld Field
• DBI N-flation
• Fine-Tuning in DBI Inflationary Mechanism
• Single-Field Inflation After WMAP5
• DBI Inflation using a One-Parameter Family of Throat Geometries
• Gravitational Wave Constraints on Multi-Brane Inflation
• Warped Wilson Line DBI Inflation
• Fuzzy Sphere Dynamics and Non-Abelian DBI in Curved Backgrounds
• Reheating a multi-throat universe by brane motion

Cited by in corpus (26)

• Dynamical systems applied to cosmology: dark energy and modified gravity
• Riding on irrelevant operators
• Dark D-brane Cosmology
• Cosmological Dynamics of a Dirac-Born-Infeld field
• Dark Energy Properties in DBI Theory
• Recent advances in cosmological singularities
• Accretion onto Some Well-Known Regular Black Holes
• Quintessence and phantom dark energy from ghost D-branes
• Dynamics of Dirac-Born-Infeld dark energy interacting with dark matter
• Varying Alpha Driven by the Dirac-Born-Infeld Scalar Field
• Roles of Modified Chaplygin-Jacobi and Chaplygin-Abel Gases in FRW Universe
• Dark D-Brane Cosmology: from background evolution to cosmological perturbations
• Accretion of Dark Energy onto Higher Dimensional Charged BTZ Black Hole
• Parametrizations of Dark Energy Models in the Background of General Non-canonical Scalar Field in $D$-dimensional Fractal Universe
• Constructions of $f(R,G,\mathcal{T})$ Gravity from Some Expansions of the Universe
• Type V singularities in non-standard cosmological backgrounds
• Interaction between DBI-essence and other Dark Energies
• Assessing the foundation and applicability of some dark energy fluid models in the Dirac-Born-Infeld framework
• Generalized second law of thermodynamics in presence of interacting DBI essence and other dark energies
• Reconstructions of $f(\mathcal{P})$ and $f(\mathcal{Q})$ gravity models from $(m,n)$-type Barrow Holographic Dark Energy: Analysis and Observational Constraints
• Thermodynamics of Modified Chaplygin-Jacobi Gas and Modified Chaplygin-Abel Gas: Stability Analysis and Observational Constraints
• Type V singularities with inhomogeneous equations of state
• Reconstructions of Einstein-Aether Gravity from Barrow Agegraphic and New Barrow Agegraphic Dark Energy models: Examinations and Observational Limits
• Higher Dimensional Cosmology with Some Dark Energy Models in Emergent, Logamediate and Intermediate Scenarios of the Universe
• Cosmic evolution of scalar fields with multiple vacua: generalized DBI and quintessence
• Bouncing cosmologies in the presence of a Dirac-Born-Infeld field