Pole Dark Energy

Abstract

Theories with a pole in the kinetic term have been used to great effect in studying inflation, owing to their quantum stability and attractor properties. We explore the use of such pole kinetic terms in dark energy theories, finding an interesting link between thawing and freezing models, and the possibility of enhanced plateaus with ``superattractor''-like behavior. We assess the observational viability of pole dark energy, showing that simple models can give dark energy equation of state evolution with $w(z)<-0.9$ even for potentials that could not normally achieve this easily. The kinetic term pole also offers an interesting perspective with respect to the swampland criteria for such observationally viable dark energy models.

7 pages, 7 figures

References in corpus (22)

• A Dynamical Solution to the Problem of a Small Cosmological Constant and Late-time Cosmic Acceleration
• Kinetically Driven Quintessence
• Universality Class in Conformal Inflation
• Superconformal Inflationary $\alpha$-Attractors
• On the Cosmological Implications of the String Swampland
• Testing General Relativity in Cosmology
• De Sitter Space and the Swampland
• The Unity of Cosmological Attractors
• The landscape, the swampland and the era of precision cosmology
• The string swampland constraints require multi-field inflation
• Cosmological Tests of Gravity
• The Hyperbolic Geometry of Cosmological Attractors
• Dark energy, $\alpha$-attractors, and large-scale structure surveys
• A note on Inflation and the Swampland
• The Novel Probes Project -- Tests of Gravity on Astrophysical Scales
• Generalized Pole Inflation: Hilltop, Natural, and Chaotic Inflationary Attractors
• Planck 2015 constraints on spatially-flat dynamical dark energy models
• Pole Inflation - Shift Symmetry and Universal Corrections
• CMB targets after the latest Planck data release
• Dark Energy from $\alpha$-Attractors
• Quintessence's Last Stand?
• $\Lambda$ is Coming: Parametrizing Freezing Fields

Cited by in corpus (8)

• Cosmic Birefringence from Monodromic Axion Dark Energy
• Quintessential $\alpha$-attractor inflation: forecasts for Stage IV galaxy surveys
• On the uniqueness of $\Lambda$CDM-like evolution for homogeneous and isotropic cosmology in General Relativity
• Evolving traversable wormholes satisfying the energy conditions in the presence of pole dark energy
• A note on inflation in dRGT massive gravity
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Dark energy model with very large-scale inhomogeneity
• Multi-pole Dark Energy