Quintessential Difficulties

Abstract

An alternative to a cosmological constant is quintessence, defined as a slowly-varying scalar field potential V(ϕ). If quintessence is observationally significant, an epoch of inflation is beginning at the present epoch, with ϕthe slowly-rolling inflaton field. In contrast with ordinary inflation, quintessence seems to require extreme fine tuning of the potential V(ϕ). The degree of fine-tuning is quantified in various cases.

7 pages LaTeX. Revised to be more pedagogical; results unchanged

References in corpus (1)

• Quintessence and the Rest of the World

Cited by in corpus (113)

• Dynamics of dark energy
• The Cosmological Constant and Dark Energy
• f(R) theories
• The Case for a Positive Cosmological Lambda-term
• The Cosmological Constant
• Beyond the Cosmological Standard Model
• Everything You Always Wanted To Know About The Cosmological Constant Problem (But Were Afraid To Ask)
• Quintessence: A Review
• Dark Matter and Dark Energy
• The Physics of Cosmic Acceleration
• Scalar-tensor gravity in an accelerating universe
• The Cosmological Constant Problem and Quintessence
• Nonminimal coupling and quintessence
• Phenomenology of a realistic accelerating universe using only Planck-scale physics
• Future Supernovae observations as a probe of dark energy
• The Robustness of Quintessence
• Dark matter, dark energy, and alternate models: A review
• Generalized Galileon cosmology
• String or M theory axion as a quintessence
• General Scalar Fields as Quintessence
• Dark Energy Condensation
• Exhaustive Study of Cosmic Microwave Background Anisotropies in Quintessential Scenarios
• Loop Corrections to Scalar Quintessence Potentials
• Modeling Quintessential Inflation
• Dark Energy and Neutrino Mass Limits from Baryogenesis
• Two-Field Quintom Models in the w-w' Plane
• Observational Constraints on Quintessence: Thawing, Tracker, and Scaling models
• Quintessence models in Supergravity
• A Quintessential Axion
• SUSY QCD and Quintessence
• Dynamics of Quintessence Models of Dark Energy with Exponential Coupling to the Dark Matter
• Supergravity, Dark Energy and the Fate of the Universe
• Supernovae Ia Constraints on a Time-Variable Cosmological "Constant"
• Solar System Constraints on Gauss-Bonnet Mediated Dark Energy
• Vainshtein mechanism in second-order scalar-tensor theories
• The Curvaton Hypothesis and the eta-problem of Quintessential Inflation, with and without Branes
• Quintessence and Spontaneous Leptogenesis
• MSLED: A Minimal Supersymmetric Large Extra Dimensions Scenario
• Model for self-tuning the cosmological constant
• Cosmological constant vs. quintessence
• Bayesian Analysis of the Chaplygin Gas and Cosmological Constant Models using the SNe Ia Data
• Dissipative Fluid in Brans Dicke theory and late time acceleration
• Natural Quintessence in String Theory
• Time-Varying alpha and Particle Physics
• Generalized Chaplygin Gas Models tested with SNIa
• K-essential Leptogenesis
• Of pNGB QuiNtessence
• Thermal leptogenesis in a model with mass varying neutrinos
• New Constraints from High Redshift Supernovae and Lensing Statistics upon Scalar Field Cosmologies
• Cosmological models from quintessence
• Constraints on Cosmic Quintessence and Quintessential Inflation
• On the Past Asymptotic Dynamics of Non-minimally Coupled Dark Energy
• Attractors and Isocurvature Perturbations in Quintessence Models
• Compactification, Vacuum Energy and Quintessence
• Dark energy: investigation and modeling
• Field theory model giving rise to "quintessential inflation" without the cosmological constant and other fine tuning problems
• Towards a model of Quintessential Inflation
• Exploring Parameter Constraints on Quintessential Dark Energy: the Pseudo-Nambu Goldstone Boson Model
• Model-dependent Axion as Quintessence with Almost Massless Hidden Sector Quarks
• Some remarks about non-minimally coupled scalar field models
• Higgs production as a probe of Chameleon Dark Energy
• Self-tuning solution of the cosmological constant problem with antisymmetric tensor field
• Naturalness of exponential cosmon potentials and the cosmological constant problem
• Quintessential perturbations during scaling regime
• Multi-field dark energy: cosmic acceleration on a steep potential
• Confronting pNGB quintessence with data
• Coupling Quintessence to Inflation in Supergravity
• Cosmic Birefringence from Monodromic Axion Dark Energy
• The generality of inflation in closed cosmological models with some quintessence potentials
• Quintessence from Shape Moduli
• Exotic Low Density Fermion States in the Two Measures Field Theory: Neutrino Dark Energy
• Static Configurations of Dark Energy and Dark Matter
• Cosmological Implications of the Effective Field Theory of Cosmic Acceleration
• SSB of scale symmetry, fermion families and quintessence without the long-range force problem
• Quantum Corrections in Quintessence Models
• Hybrid Dark Sector: Locked Quintessence and Dark Matter
• Bayesian Statistics and Parameter Constraints on the Generalized Chaplygin Gas Model using SNe Ia Data
• Dark Energy and the MSSM
• Quintessence with two energy scales
• Can we test Dark Energy with Running Fundamental Constants ?
• Stochastic Quintessence
• Gauge Quintessence
• Cosmological dynamics of interacting dark energy and dark matter in viable models of f(R) gravity
• Quantum Fine-Tuning in Stringy Quintessence Models
• Quintessence and the Underlying Particle Physics Theory
• Gravitational waves in the generalized Chaplygin gas model
• Proposal for a Constant Cosmological Constant
• Constraints on inflation in closed universe
• Dark world and baryon asymmetry from a common source
• Challenging the Cosmological Constant
• High-quality axions in a class of chiral $U(1)$ gauge theories
• Addressing the High-$f$ Problem in Pseudo-Nambu-Goldstone Boson Dark Energy Models with Dark Matter - Dark Energy Interaction
• Gif Lectures on Cosmic Acceleration
• Observable interactions of quintessence with ordinary matter and neutrinos
• Viable dark energy models using pseudo-Nambu-Goldstone bosons
• Exit from inflation and a paradigm for vanishing cosmological constant in self-tuning models
• Quintessentially Flat Scalar Potentials
• The Universality of Seesaws
• Quintessential inflation and nonlinear effects of the tachyonic trap mechanism
• Cosmological Unification, Dark Energy and the Origin of Neutrino Mass
• Avoiding parameter fine-tuning in mass varying neutrino models of DE?
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Radiative constraints on brane quintessence
• N=2 PNGB Quintessence Dark Energy
• Preheating and Dark Sector of Universe
• Supergravity models of Quintessence and Supersymmetry breaking
• Inflation with blowing-up solution of cosmological constant problem
• Phenomenological aspects of dark energy dominated cosmologies
• Tensorial Perturbations in an Accelerating Universe
• Radiative Inflation and Dark Energy
• Anomalies and parities for quintessential and ultra-light axions
• A Jacobian generalization of the pseudo Nambu-Goldstone bosons potential
• Can Moduli Fields parametrize the Cosmological Constant?