Induced cosmological constant and other features of asymmetric brane embedding
arXiv:0901.3074 · doi:10.1088/1475-7516/2009/04/023
Abstract
We investigate the cosmological properties of an "induced gravity" brane scenario in the absence of mirror symmetry with respect to the brane. We find that brane evolution can proceed along one of four distinct branches. By contrast, when mirror symmetry is imposed, only two branches exist, one of which represents the self-accelerating brane, while the other is the so-called normal branch. This model incorporates many of the well-known possibilities of brane cosmology including phantom acceleration (w < -1), self-acceleration, transient acceleration, quiescent singularities, and cosmic mimicry. Significantly, the absence of mirror symmetry also provides an interesting way of inducing a sufficiently small cosmological constant on the brane. A small (positive) Lambda-term in this case is induced by a small asymmetry in the values of bulk fundamental constants on the two sides of the brane.
17 pages, 4 figures. New results and two figures discussing transient acceleration are included. Version accepted for publication in JCAP
References in corpus (74)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
- A Large Mass Hierarchy from a Small Extra Dimension
- Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- 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
- The Cosmological Constant and Dark Energy
- Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
- 4D Gravity on a Brane in 5D Minkowski Space
- A Phantom Menace? Cosmological consequences of a dark energy component with super-negative equation of state
- Cosmological Constant - the Weight of the Vacuum
- The Case for a Positive Cosmological Lambda-term
- The Cosmological Constant
- Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications
- Heterotic and Type I String Dynamics from Eleven Dimensions
- Dark Energy and the Accelerating Universe
- New Hubble Space Telescope Discoveries of Type Ia Supernovae at z > 1: Narrowing Constraints on the Early Behavior of Dark Energy
- Eleven-Dimensional Supergravity on a Manifold with Boundary
- Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
- Three Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Polarization Analysis
- Accelerated Universe from Gravity Leaking to Extra Dimensions
- Observational Constraints on the Nature of the Dark Energy: First Cosmological Results from the ESSENCE Supernova Survey
- Brane-World Gravity
- Cosmology on a Brane in Minkowski Bulk
- Brane-world gravity
- Braneworld models of dark energy
- Reconstructing Dark Energy
- Two new diagnostics of dark energy
- Dark Matter and Dark Energy
- Gravity on a Brane in Infinite-Volume Extra Space
- Sudden Future Singularities
- Dynamics of Anti-de Sitter Domain Walls
- Tachyons, Scalar Fields and Cosmology
- Quantum escape of sudden future singularity
- Brane-world cosmology
- General brane cosmologies and their global spacetime structure
- The Phenomenology of Dvali-Gabadadze-Porrati Cosmologies
- Structure formation in the DGP cosmological model
- More on ghosts in DGP model
- Differentiating between Modified Gravity and Dark Energy
- DGP Specteroscopy
- Brane versus shell cosmologies in Einstein and Einstein-Gauss-Bonnet theories
- New Cosmological Singularities in Braneworld Models
- How a brane cosmological constant can trick us into thinking that w < -1
- Constructing stabilized brane world models in five-dimensional Brans-Dicke theory
- Ghosts in the self-accelerating universe
- Brane Cosmologies without Orbifolds
- Cosmology in the Randall-Sundrum Brane World Scenario
- Confronting Braneworld Cosmology with Supernova data and Baryon Oscillations
- Observational constraints on phantom-like braneworld cosmologies
- A New Perspective on DGP Gravity
- Quantum effects, soft singularities and the fate of the universe in a braneworld cosmology
- Bulk Matters on Symmetric and Asymmetric de Sitter Thick Branes
- General Brane Dynamics with R_{4} term in the Bulk
- Structure formation in modified gravity models alternative to dark energy
- Perturbations of Self-Accelerated Universe
- Brane World Cosmology Without the Z_2 Symmetry
- Einstein equations for an asymmetric brane-world
- Reflection symmetry breaking scenarios with minimal gauge form coupling in brane world cosmology
- Near-Horizon Solution for DGP Perturbations
- Dark Energy and Modified Gravity
- Cosmological Surprises from Braneworld models of Dark Energy
- Stealth Branes
- Asymmetric brane-worlds with induced gravity
- Colliding Bubble Worlds
- Cosmic Mimicry: Is LCDM a Braneworld in Disguise ?
- Stealth Acceleration and Modified Gravity
- Is our Universe brany ?
- Ghosts in asymmetric brane gravity and the decoupled stealth limit
- Supernova Constraints on Braneworld Dark Energy
- Gravitational instability on the brane: the role of boundary conditions
- Asymmetric embedding in brane cosmology
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- Modified Gravity and Cosmology
- Brane-World Gravity
- Testing General Relativity in Cosmology
- Fermion Localization and Resonances on A de Sitter Thick Brane
- Localization and Mass Spectra of Fermions on Symmetric and Asymmetric Thick Branes
- Fermion Resonances on Multi-field Thick Branes
- Scalar-Kinetic Branes
- Constraining the Cosmology of the Phantom Brane using Distance Measures
- Metastable Dark Energy with Radioactive-like Decay
- Fermion localization on asymmetric two-field thick branes
- A Note on Asymmetric Thick Branes
- Bulk matter fields on two-field thick branes
- Cosmological perturbations in SFT inspired non-local scalar field models
- Fermion Resonances on a Thick Brane with a Piecewise Warp Factor
- Localization of nonlocal cosmological models with quadratic potentials in the case of double roots
- Bulk Matters on a GRS-Inspired Braneworld
- Modified GBIG Scenario as an Alternative for Dark Energy
- Models for asymmetric hybrid brane
- Deformed brane with finite extra dimension
- Reconstructing Cosmological Matter Perturbations using Standard Candles and Rulers
- Dynamical-Screening and the Phantom-Like Effects in a DGP-Inspired Model
- Non-Minimal Warm Inflation and Perturbations on the Warped DGP Brane with Modified Induced Gravity
- Symmetric and asymmetric thick brane structures
- Perturbative stability of SFT-based cosmological models
- Emulating CDM-like expansion on the Phantom brane
- Phantom-like effects in asymmetric brane embedding with induced gravity and the Gauss-Bonnet term in the Bulk
- New models for asymmetric kinks and branes
- Tensor gauge field localization on a string-like defect
- The Cosmology of Asymmetric Brane Modified Gravity
- Localization mechanism of form field on the brane-world by coupling with gravity
- Vacuum thin shells in Einstein-Gauss-Bonnet brane-world cosmology