Quintessence with a constant equation of state in hyperbolic universes
- 18 June 2003
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 67 (12)
- https://doi.org/10.1103/physrevd.67.123511
Abstract
Quintessence models leading to a constant equation of state are studied in hyperbolic universes. General properties of the quintessence potentials V(phi) are discussed, and for some special cases also the exact analytic expressions for these potentials are derived. It is shown that the observed angular power spectrum of the cosmic microwave background (CMB) is in excellent agreement with some of the quintessence models even in cases with negative curvature. It is emphasized that due to a (w_phi, Omega_phi, Omega_c)-degeneracy a universe with negative spatial curvature cannot be excluded.Keywords
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This publication has 43 references indexed in Scilit:
- Model-Independent Dark Energy Differentiation with the Integrated Sachs-Wolfe EffectPhysical Review Letters, 2003
- A Measurement by BOOMERANG of Multiple Peaks in the Angular Power Spectrum of the Cosmic Microwave BackgroundThe Astrophysical Journal, 2002
- Current constraints on the dark energy equation of statePhysical Review D, 2002
- Quintessence and the Separation of Cosmic Microwave Background PeaksThe Astrophysical Journal, 2001
- Using the acoustic peak to measure cosmological parametersPhysical Review D, 2000
- Linear redshift distortions and power in the IRAS Point Source Catalog Redshift SurveyMonthly Notices of the Royal Astronomical Society, 2000
- Measurements of Ω and Λ from 42 High‐Redshift SupernovaeThe Astrophysical Journal, 1999
- Supernova Limits on the Cosmic Equation of StateThe Astrophysical Journal, 1998
- Structure Formation with Generalized Dark MatterThe Astrophysical Journal, 1998
- The Absolute Luminosities of the Calan/Tololo Type IA SupernovaeThe Astronomical Journal, 1996