Making Sense Of The New Cosmology

Abstract

Over the past three years we have determined the basic features of the Universe -- spatially flat; accelerating; comprised of 1/3 a new form of matter, 2/3 a new form of energy, with some ordinary matter and a dash of massive neutrinos; and apparently born from a burst of rapid expansion during which quantum noise was stretched to astrophysical size seeding cosmic structure. The New Cosmology greatly extends the highly successful hot big-bang model. Now we have to make sense of all this: What is the dark matter particle? What is the nature of the dark energy? Why this mixture? How did the matter -- antimatter asymmetry arise? What is the underlying cause of inflation (if it indeed occurred)?

17 pages Latex (sprocl.sty). To appear in the Proceedings of 2001: A Spacetime Odyssey (U. Michigan, May 2001, World Scientific)

References in corpus (4)

• Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
• Probing the dark energy: methods and strategies
• How old is the Universe ? Setting new constraints on the age of the Universe
• A Sober Assessment of Cosmology at the New Millennium

Cited by in corpus (31)

• Entropy Bounds and Dark Energy
• A Model-Independent Determination of the Expansion and Acceleration Rates of the Universe as a Function of Redshift and Constraints on Dark Energy
• Holography and Variable Cosmological Constant
• Categorizing Different Approaches to the Cosmological Constant Problem
• Dynamics of Quintessence Models of Dark Energy with Exponential Coupling to the Dark Matter
• Current Observational Constraints to Holographic Dark Energy Model with New Infrared cut-off via Markov Chain Monte Carlo Method
• Reconstruction of Deceleration Parameters from Recent Cosmic Observations
• The relation between F(R) gravity and Einstein-conformally invariant Maxwell source
• Holographic Dark Energy in Brans-Dicke Theory
• A model of the Universe including Dark Energy accounted for by both a Quintessence Field and a (negative) Cosmological Constant
• Generalized Holographic and Ricci Dark Energy Models
• Observational Constraints to Ricci Dark Energy Model by Using: SN, BAO, OHD, fgas Data Sets
• $f(R,T)=f(R)+\lambda T$ gravity models as alternatives to cosmic acceleration
• Constraints on Kinematic Model from Recent Cosmic Observations: SN Ia, BAO and Observational Hubble Data
• Statefinder Parameters for Interacting Phantom Energy with Dark Matter
• Cosmic Constraint on Ricci Dark Energy Model
• The galaxy cluster X-ray luminosity--gravitational mass relation in the light of the WMAP 3rd year data
• Exploring the Sharma-Mittal HDE models with different diagnostic tools
• High Redshift Long Gamma-Ray Bursts Hubble Diagram as a Test of Basic Cosmological Relations
• Testing Lambda and the Limits of Cosmography with the Union2.1 Supernova Compilation
• Statefinder Parameters for Five-Dimensional Cosmology
• Reconstruction of $5D$ Cosmological Models From Equation of State of Dark Energy
• An expanding 4D universe in a 5D Kaluza-Klein cosmology with higher dimensional matter
• Comparing teh holographic principle inspired dark energy models
• Statefinder Diagnostic for Phantom Model with $V(\varphi )=V_0\exp (-\lambda {\varphi }^2)$
• Finite-temperature scalar fields and the cosmological constant in an Einstein universe
• Flat Cosmology with Coupled Matter and Dark Energies
• THESEUS$-$BTA cosmological tests using Multimessenger Gamma-Ray Bursts observations
• Thermodynamics of gravitational clustering phenomena: $N$-body self-gravitating gas on the sphere ${\mathbb{S}}^3\subset {\mathbb{R}}^4$
• Cosmic Acceleration from Causal Backreaction with Recursive Nonlinearities
• Correspondence between modified gravity and 5D Ricci-flat cosmologies